the independent variable in either a before/after t or a within subjects f is always of what data scale?the independent variable in either a before/after t or a within subjects f is always of what data scale?
The independent variable in either a before/after t-test or a within-subjects ANOVA is always measured on a nominal or categorical scale.
This is because these statistical tests are used to compare means of two or more related groups, where the independent variable represents the different conditions or time points in which the dependent variable is measured.
For example, in a before/after t-test comparing the effectiveness of a medication, the independent variable would be the two time points (before and after), which are categorical in nature. Similarly, in a within-subjects ANOVA comparing three different treatment conditions, the independent variable would be the three treatment conditions, which are nominal in nature.
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a student has 12 toys. her friend has 2 times as many toys. how many toys do they have together
Answer:
Together, they have 12 + 2(12) = 12 + 24 = 36 toys.
Answer:
so in total they have 36 toys
Step-by-step explanation:
How many milliliters is 0.005 L?A) 0.5 mL B) 5 mL C) 0.50 mL D) 0.000005 mL E) 200 mLAns: B Category: Medium Section: 1.9
After conversion, B) 5 mL is 0.005 L milliliters
The quantity given = 0.005 L
Using a unit conversion, the same property is stated in a different unit of measurement. Minutes can be used to measure time instead of hours, and feet, kilometres, or any other measurement method can be used to measure distance in place of miles.
To convert from litres to millilitres, it is required to multiply the quantity by 1000. This is because there are 1000 millilitres in one litre.
Therefore, converting the given value-
= 0.005 L x 1000 mL/L
= 5
Thus, the resultant value after conversion is 5mL
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5
Select the correct answer,
Solve the following inequality for %.
z-9≤2(9)
O A. X=<9
OB. X> =11
OC. x<-7
OD. x<10
Answer:
1) -4<x<-2
2) x<-7 or x75
3) 2<x<7
4) x<-5 or x<6
5) x<-8 or x74
Step-by-step explanation:
What is an equation of the line that passes through the point ( − 2 , − 2 ) and is parallel to the line 5x − y = 4 ?
Answer:
(-2,-2)
Step-by-step explanation:
To find the equation of the line that passes through the point (-2,-2) and is parallel to the line 5x - y = 4, we need to first find the slope of the given line. We can rearrange the given equation into slope-intercept form y=5x-4, where the slope is 5.
Since parallel lines have the same slope, the slope of the line we want to find is also 5. We can use the point-slope formula y-y1 = m(x-x1), where m is the slope and (x1,y1) is the given point.
Substituting m=5, x1=-2, and y1=-2, we get:
y-(-2) = 5(x-(-2))
y+2 = 5x+10
y = 5x+8
Therefore, the equation of the line that passes through the point (-2,-2) and is parallel to the
Which model is appropriate for the set {(-2,4. 5),(0,8),(1,10. 67),(3,18. 96)}
We can conclude that a quadratic model is appropriate for the given set of points {(-2,4. 5),(0,8),(1,10. 67),(3,18. 96)}.
To determine which model is appropriate for the given set of points {(-2,4.5),(0,8),(1,10.67),(3,18.96)}, we need to examine the pattern in the data and choose a model that fits the pattern well.
One common approach to fitting a model to data is to use regression analysis. In this case, we can start by plotting the points on a graph and visually examining the pattern.
When we plot the points, we see that they form a curved shape that resembles a quadratic function. To confirm this, we can use regression analysis to fit a quadratic model to the data.
Using a quadratic regression model, we obtain an equation of the form y = ax^2 + bx + c, where a, b, and c are constants to be determined. The regression analysis yields the following coefficients: a = 2.138, b = 1.959, and c = 5.48.
We can now use this quadratic equation to predict y for any given value of x within the range of the data.
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The ratio of red counters to green counters in a bag is 3:17. What percentage of the counters are red
Answer:
0.15%
Step-by-step explanation:
red is 3
the total is 20
percentage of red counters = 3 ÷ 20 = 0.15%
129°
(16x + 17)*
Solve for x.
Therefore , the solution of the given problem of angles comes out to be
x = 7 is the answer to the equation (16x + 17) = 129° for the variable x.
An angle's meaning is what?A skew greatest and smallest walls are located where the roads leading to its ends meet. A crossroads could be where two paths converge. Angle is another outcome of two things interacting. They mimic dihedral shapes more than anything. A two-dimensional curve can be created by arranging two line beams in various ways between their endpoints.
Here,
The steps below can be used to find x in the equation (16x + 17) = 129°:
To find the term with x on one side of the equation, first subtract 17 from both sides of the equation:
=> 16x + 17 - 17 = 129 - 17
=> 16x = 112
Step 2: To find x, multiply both sides of the equation by 16:
=> 16x / 16 = 112 / 16 x = 7
Thus, x = 7 is the answer to the equation (16x + 17) = 129° for the variable x.
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The equation of your model is y=0.16x use your model to predict how many pieces are in the star wars Lego death star set it costs $499.99
Answer:
Rounding to the nearest whole number, we predict that the Star Wars Lego Death Star set has approximately 80 pieces. However, it's important to note that this prediction is based solely on the given model and may not necessarily reflect the actual number of pieces in the set.
Step-by-step explanation:
The given equation for the model is y = 0.16x, where y represents the number of pieces in a Lego set and x represents the cost of the set in dollars.
To use this model to predict the number of pieces in the Star Wars Lego Death Star set that costs $499.99, we substitute x = 499.99 into the equation and solve for y:
y = 0.16x
y = 0.16(499.99)
y = 79.9984
Identify the area of the figure. PLEASE RESPOND ASAP TYSM!!!
Answer:
184 cm to the 3
Step-by-step explanation:
13x7 91+90+181 and add 3
the following correlation matrix shows the pearson correlations between various baseball pitching related statistics, of which the number of wins (w) is considered to be a criterion measure of pitching performance by a team. which statistic has an inverse relationship with the number of wins?
To decide which measurement has a reverse relationship with the number of wins, we ought to seek for a relationship coefficient with negative esteem. A negative correlation coefficient shows that as one variable increments, the other variable tends to diminish.
Without seeing the real relationship framework, we cannot point out the precise statistic that has a reverse relationship with the number of wins. In any case, ready to search for the relationship coefficient that features negative esteem.
For illustration, in the event that we have a relationship network like this:
markdown
| W | Period | WHIP | SO/9 | BB/9 |
----------------------------------------------
W | 1 | -0.7 | -0.6 | 0.5 | -0.3 |
----------------------------------------------
Period | -0.7| 1 | 0.9 | -0.8 | 0.5 |
----------------------------------------------
WHIP | -0.6| 0.9 | 1 | -0.7 | 0.4 |
----------------------------------------------
SO/9 | 0.5| -0.8 | -0.7 | 1 | -0.4 |
----------------------------------------------
BB/9 | -0.3| 0.5 | 0.4 | -0.4 | 1 |
----------------------------------------------
We are able to see that the relationship coefficient between the number of wins (W) and the earned run normal (Time) is -0.7, which indicates a strong negative relationship. This implies that as the Time increments (showing poorer pitching execution), the number of wins tends to diminish. Subsequently, Time has a reverse relationship with the number of wins.
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Find the volume of the solid formed by rotating the region enclosed by y = e 4 x 1 , y = 0 , x = 0 , x = 0. 3 about the x -axis
The volume of the solid formed by rotating the region is 26.95 cubic units.
To find the volume of the solid formed by rotating the region enclosed by y = [tex]e^{4x}[/tex] + 1, y = 0, x = 0, and x = 0.3 about the x-axis, we can use the formula for the volume of a solid of revolution:
V = ∫[a, b] π * f(x)^2 dx
where a and b are the limits of integration, and f(x) is the distance from the x-axis to the curve being rotated.
In this case, a = 0 and b = 0.3, and f(x) = e^4x+1. Therefore, we have:
V = ∫[0, 0.3] π * [tex](e^{4x}+1)^{2}[/tex] dx
To evaluate this integral, we can use u-substitution with u = 4x + 1, du/dx = 4, and dx = du/4. Making this substitution, we get:
V = ∫[5, 6.2] π * [tex](e^{u} )^{2}[/tex] * (1/4) du
Simplifying, we get:
V = (π/4) * ∫[5, 6.2] [tex]e^{2u}[/tex] du
Using the power rule of integration, we get:
V = (π/8) * [[tex]e^{2u}[/tex] /2] |_[tex]5^{6.2}[/tex]
Substituting back in for u and simplifying, we get:
V = (π/8) * ([tex]e^{12.4} - e^{10}[/tex] )
Therefore, the volume of the solid formed by rotating the region enclosed by y = [tex]e^{4x}[/tex] +1, y = 0, x = 0, and x = 0.3 about the x-axis is approximately 26.95 cubic units.
Correct Question :
Find the volume of the solid formed by rotating the region enclosed by y = e^4x+1 , y = 0 , x = 0 , x = 0. 3 about the x -axis.
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Taner wants to run a total of 6 kilometers between last week and this week. How far does Taner need to run this week to reach his goal?
Thus, Taner needs to run only 3 km this week to reach his run target of 6 km.
Explain about the fractional number:We can begin by defining fractional numbers as numbers that represent one or maybe more pieces of a unit that has been divided into equal parts if we need a definition.
Two whole numbers (any fraction terms) separated by a horizontal line are used to calculate the fractional numbers (the fraction line). Every whole number may be used as the numerator above the line, whereas the denominator below the line must be distinct from zero.Given that-
Total run target for Taner is 6 km (including last week and this week)So,
2 week target for Taner = 6 km
Now,
1 week target for Taner = 6/2 = 3 km
As, 3 km of run is already finished by the Taner last week. Thus, Taner needs to run only 3 km this week to reach his goal.
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please help with this question
Answer:
A-223
B-98
Step-by-step explanation:
A- To find the perimeter of a shape you have to add all the sides together .
Here the only information we get is the length which is 99 and we have to find the width .
To find the width we have to do
332-99
=98m
B-To find the area of a shape you have to do height x width
h x w
but here it gives us the length and the area of it so we would have to divide the two numbers
6468÷66
=98cm²
Carol was packing up some of her old stuff into a box. A box can hold 2 pounds, but she only filled it up 1/2 full How much weight was in the box?
Answer:
1 pound
Step-by-step explanation:
If a box can hold 2 pounds but is only filled up 1/2 full, then there is only 1 pound of weight in the box.
To see why, consider that if the box was completely full, it would hold 2 pounds. But if it is only half full, it can only hold half of that amount, or 1 pound. Thus, the weight in the box is 1 pound.
City Furniture Company operates on an overhead which is 25% of the selling price. If one of their sleeper sofas costs City Furniture $237.85 and the overhead on the sofa is $174.50, find the selling price, the markup, and the net profit.
Answer: the selling price of the sleeper sofa is $698, the markup is $460.15, and the net profit is $285.65.
Step-by-step explanation: Add up to fetched = fetched + overhead
Add up to fetched = $237.85 + $174.50
Add up to fetched = $412.35
Since the overhead is 25% of the offering cost, we are able utilize this data to discover the offering cost:
Overhead = 0.25 * Offering cost
Offering cost = Overhead / 0.25
Offering cost = $174.50 / 0.25
Offering cost = $698
The markup is the distinction between the offering cost and the taken a toll:
Markup = Offering cost - Fetched
Markup = $698 - $237.85
Markup = $460.15
The net benefit is the markup short the overhead:
Net benefit = Markup - Overhead
Net benefit = $460.15 - $174.50
Net benefit = $285.65
a study is to be made to estimate the percent- age of citizens in a town who favor having their water fluoridated. how large a sample is needed if one wishes to be at least 95% confident that the estimate is within 1% of the true percentage?
A sample size of approximately 9604 citizens is needed to achieve at least 95% confidence that the estimate is within 1% of the true percentage.
To determine the sample size needed for a study to estimate the percentage of citizens in a town who favor water fluoridation with 95% confidence and a margin of error within 1%, you can use the following formula:
Sample Size (n) = ([tex]z^{2}[/tex] * P * (1-P)) / [tex]E^{2}[/tex]
where:
Z = 1.96 (the Z-score corresponding to a 95% confidence level)
P = estimated proportion of the population (use 0.5 if no prior knowledge)
E = margin of error (0.01 for 1%)
Plugging the values into the formula:
n = ([tex]1.96^{2}[/tex] * 0.5 * (1-0.5)) / [tex]0.01^{2}[/tex]
n = (3.8416 * 0.5 * 0.5) / 0.0001
n = 0.9604 / 0.0001
n ≈ 9604
Therefore, a sample size of approximately 9604 citizens is needed to achieve at least 95% confidence that the estimate is within 1% of the true percentage.
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Question 19
By age 65 the number of Americans who experience hearing loss sufficient to affect communication is:
a. 1 in 2
b. 1 in 3
c. 1 in 4
d. 1 in 5
The number of Americans experience hearing loss sufficient to affect communication is: 1 in 4.
According to the National Institute on Deafness and Other Communication Disorders (NIDCD).
Approximately 1 in 4 adults in the United States aged 65 and older have hearing loss that is sufficient to affect communication.
This is based on data from a survey conducted by the NIDCD and the National Health Interview Survey.
NIDCD (National Institute on Deafness and Other Communication Disorders).
In the United States, 1 in 4 persons 65 and older suffer hearing loss severe enough to impair conversation.
This is based on information from surveys done by the National Health Interview Survey and the NIDCD.
The number of Americans who experience hearing loss sufficient to affect communication is: 1 in 4.
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water is exiting a giant cone shaped funnel at a rate of 15 cubic inches per second. the funnel is 75 inches high and has a maximum radius of 40 inches. what is the rate at which the water level of the funnel is changing when the water is 15 inches high? note that the volume of the cone is v
In the event of alteration in the rate at which the water level of the funnel is changing when the water is 15 inches high is 0.42 cubic inches per second.
The volume of a cone is given by the formula V = (1/3)πr²h here r is the radius of the base and h is the height of the cone.
Now we have differentiate this formula concerning t to get
dV/dt = (1/3)πr²dh/dt + (2/3)πrh²dr/dt.
It is given to us that water is coming out a giant cone shaped funnel at a rate of 15 cubic inches per second, then we can say that
dV/dt = -15 cubic inches per second
Therefore the funnel has a maximum radius of 40 inches and a height of 75 inches. We need to evaluate dh/dt
If h = 15 inches.
In order to find dh/dt,
we need to evaluate dr/dt and place it in equation for dV/dt.
Therefore, to find dr/dh = r/h.
Given
when h = 75 inches,
r = 40 inches.
Therefore, dr/dh
= 40/75.
Staging this into the equation for dV/dt,
-15 = (1/3)π(40²)(dh/dt) + (2/3)π(40)(15)²(40/75)
Here simplification takes place
dh/dt = -0.4π/3
≈ -0.42 cubic inches per second
In the event of alteration in the rate at which the water level of the funnel is changing when the water is 15 inches high is 0.42 cubic inches per second.
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with a simple random sample, nobody can game the system to purposefully amplify their answers over that of others because
With a simple random sample, nobody can game the system to purposefully amplify their answers over that of others because the selection process is random.
With a simple random sample, each participant is selected at random from the population, ensuring that everyone has an equal chance of being selected.
This eliminates any potential bias or manipulation, as no one can control or influence the selection process. Additionally, the sample size can be increased to amplify the accuracy and representativeness of the data collected. Therefore, a simple random sample is a reliable method for gathering unbiased data.
With a simple random sample, nobody can game the system to purposefully amplify their answers over that of others because the selection process is random.
This means that each individual or element in the population has an equal chance of being chosen, ensuring unbiased and representative sample results.
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With a simple random sample, nobody can game the system to purposefully amplify their answers over that of others because the selection process is random.
With a simple random sample, each participant is selected at random from the population, ensuring that everyone has an equal chance of being selected.
This eliminates any potential bias or manipulation, as no one can control or influence the selection process. Additionally, the sample size can be increased to amplify the accuracy and representativeness of the data collected. Therefore, a simple random sample is a reliable method for gathering unbiased data.
With a simple random sample, nobody can game the system to purposefully amplify their answers over that of others because the selection process is random.
This means that each individual or element in the population has an equal chance of being chosen, ensuring unbiased and representative sample results.
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Please help!!! I don't know how to find the area of this shaded shape, can someone explain this! Thank you.
Answer: The way you can find the area of this shape is by splitting the shape into a triangle and a square find the areas of each shape and then add the values.
Step-by-step explanation:
A cylinder has a height of 20 millimeters and a radius of 6 millimeters. What is its volume?
Use 3.14 and round your answer to the nearest hundredth.
Answer:
V = hpi(r)^2
= 20(3.14)(17)^2 = 18,149.20 cubic mm
More accurately,
V = 20(3.14159)(17)^2 = 18158.39 mm^3
Step-by-step explanation:
Is the event independent or dependent? You toss a penny and you toss a
dime.
O dependent
O independent
Answer:
the event would be independent.
Step-by-step explanation:
because the penny and dime are two seperate variables
Jodi has $4,862.33 in a savings account that will earn 2.99% interest on the principal for
5 years. What is the amount of simple interest that she will earn?
The Central Limit Theorem can also be used to investigate unusual events. An unusual event is one that occurs with a probability of less than ___%
The Central Limit Theorem can also be used to investigate unusual events. An unusual event is one that occurs with a probability of less than 1%
The Central Limit Theorem can be used to investigate unusual events by calculating the probability of a sample mean being a certain number of standard deviations away from the population mean.
If we assume that the population is normally distributed, then we can use the normal distribution to calculate the probability of observing a sample mean that is a certain number of standard deviations away from the population mean.
An unusual event is typically defined as an event that occurs with a low probability, usually less than 5% or 1%. So, if we observe a sample mean that is more than 2 standard deviations away from the population mean, we can say that this is an unusual event that occurs with a probability of less than 5%. Similarly, if we observe a sample mean that is more than 3 standard deviations away from the population mean, we can say that this is an unusual event that occurs with a probability of less than 1%.
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Question 1 (1 point)
Given parallelogram WXYZ, where WX = 2x + 15, XY = x + 27 and YZ = 4x - 21,
determine the length of ZW, in inches.
The length of ZW=
The length of ZW is 45 inches.
What is a parallelogram?A parallelogram is a member of quadrilateral which has a pair of opposite sides to be equal, and a pair of slant opposite sides.
In the given information, we have;
WX = YZ (a pair of opposite side of a parallelogram are equal)
2x + 15 = 4x - 21
collect like terms,
21 + 15 = 4x - 2x
36 = 2x
x = 36/2
x = 18
So that;
WX = 2x + 15
= 2(18) + 15
WX = 36 + 15
= 51
XY = x + 27
= 18 + 27
= 45
Therefore,
ZW = XY (a pair of opposite sides are equal)
ZW = 45
The length of ZW is 45 inches.
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The population of a city has been increasing by 2% annually. The sign shown is from the year 2000.
Write an exponential growth function that represents the population t
years after 2000.
y=
.
What will the population be in 2020? Round your answer to the nearest thousand.
The population will be about
.
The exponential growth function for the given initial population of the city is y = 315,000 × (1 + 0.02)ⁿ .
And the population increase in the year 2020 is equal to 468000.
Population in the year 2000 = 315,000
Increase in population growth by 2%
The population is increasing by 2% annually, which means the growth rate is 0.02 per year.
The initial population in the year 2000 is 315,000.
An exponential growth function as follows,
y = a ( 1 + r )ⁿ
Where 'a' represents the initial population of the city.
And 'r' represents the rate of the growth of the population.
y = 315,000 × (1 + 0.02)ⁿ
where n is the number of years after 2000 .
And y is the population at that time.
To find the population in the year 2020,
Substitute n = 20 into the equation to get the population in 2020 and solve for y,
y = 315,000 × (1 + 0.02)²⁰
⇒ y = 315,000 × (1.02)²⁰
⇒ y = 315,000 × 1.4860
y ≈ 468073.4
Rounding to the nearest thousand, the population in 2020 will be about 468000.
Therefore, the exponential growth function is y = 315,000 × (1 + 0.02)ⁿ and the population in 2020 is 468000.
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The above question is incomplete, the complete question is:
The population of a city has been increasing by 2% annually. The sign shown is from the year 2000.
City limit
Brookfield
Population. 315,000
Write an exponential growth function that represents the population t
years after 2000?
y=
What will the population be in 2020? Round your answer to the nearest thousand.
The population will be about
16^5+16^4 is divisible by 17
What is the probability of rushing picking a blue shin
If in an Bernoulli experiment the chance of picking red ball is 3.2 times higher than to pick a blue ball, the probability of picking a red ball is approximately 0.7619, or 76.19%.
A Bernoulli experiment is a statistical experiment that has only two possible outcomes, usually referred to as success and failure. In this case, the outcomes are picking a red ball or picking a blue ball.
Let's assume that the probability of picking a blue ball is P(B), and the probability of picking a red ball is P(R). We are given that the chance of picking a red ball is 3.2 times higher than the chance of picking a blue ball. Mathematically, this can be expressed as:
P(R) = 3.2 * P(B)
We also know that the sum of the probabilities of all possible outcomes must be 1, so:
P(R) + P(B) = 1
We can use these two equations to solve for P(R):
P(R) + (1/3.2) * P(R) = 1
(4.2/3.2) * P(R) = 1
P(R) = 3.2/4.2 = 0.7619
This means that out of every 10 balls, about 7.6 will be red and 2.4 will be blue.
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Complete question is:
In an Bernoulli experiment the chance of picking red ball is 3.2 times higher than to pick a blue ball. What is the probability of picking the red ball?
Can someone help with this question????
Answer:
besides this pic nothing else can be done