Answer:
24 ; Tstat > Tcritical ; 0.052 ; Fail to eject the Null
Step-by-step explanation:
Claiborne model:
$4.7 $3.8 $6.7 $3.8 $3.9 $4.2 $4.0 $4.0 $4.8 $3.1 $3.1 $5.5 $3.4 $6.1 $4.9
Sample size, n1 = 15
Using calculator :
Mean, m1 = 4.4
Standard deviation, s1 = 1.056
Klein model:
$4.0 $3.8 $3.6 $2.5 $4.9 $5.2 $5.9 $4.9 $4.4 $3.6 $5.1 $4.7
Sample size, n = 12
Mean, m2 = 4.38
Standard deviation (s) = 0.923
To obtain the degree of freedom for unequal variances test, use the Relation :
Degree of freedom (DF) = (s1²/n1 + s2²/n2)² / { [ (s1² / n1)² / (n1 - 1) ] + [ (s2² / n2)² / (n2 - 1) ] }
(1.056^2/15 + 0.923^2/12)^2 / {[(1.056^2/15)^2 / (15 - 1)] + [(0.923^2/12)^2 / (12 - 1)]}
0.0211226 / (0.0003947 + 0.0004581)
= 24.768527
df = 24 rounded down to the nearest whole number.
Decision region :
α = 1-0.95 = 0.05
Tdf, 0.05 = 1.711
Tcritical = 1.711
Reject Null, if Tstat > Tcritical
The t - test statistic :
(m1 - m2) / (s1²/n1 + s2²/n2)
(4.4 - 4.38) / sqrt(1.056^2 / 15 + 0.923^2 / 12)
0.02 / 0.3812301
= 0.0524617
= 0.052
Since, Tstat < Tcritical, we fail to reject the Null. It is not reasonable to conclude that Claiborne model earns more.
What is the slope for a linear function that includes the points (2, -1) and (1, 1).
A. 2.
B. -2
C. 1/2
D. -1/2
PLZ HELP HURRY
A baker is deciding how many batches of muffins to make to sell in his bakery. He wants to make enough to sell every one and no fewer. Through observation, the baker has established a probability distribution. x P(x) 1 0.10 2 0.30 3 0.40 4 0.20 What is the probability the baker will sell exactly one batch
Answer:
[tex]P(x = 1) = 0.10[/tex]
Step-by-step explanation:
Given
[tex]\begin{array}{ccccc}x & {1} & {2} & {3} & {4} \ \\ P(x) & {0.10} & {0.30} & {0.40} & {0.20} \ \ \end{array}[/tex]
Required
Determine the probability of selling exactly 1 batch
This probability is represented with [tex]P(x = 1)[/tex]
From the table:
When x = 1; P(x) = 0.10
Hence:
[tex]P(x = 1) = 0.10[/tex]
In other words, the probability of selling exactly 1 is 0.10
Find the cost of 80 Orange at 5 for 30 naria
Answer:
The cost of 80 oranges = 480 nairas
Step-by-step explanation:
Given
The cost of 5 oranges = 30 naira
Determine
The cost of 80 oranges
Given that the cost of 5 oranges = 30 naira
so,
Unit rate = 30 nairas / 5 oranges
= 6 nairas per orange
∴ The cost of 1 orange = 6 nairas
As the cost of 1 orange = 6 nairas
Thus,
The cost of 80 oranges = 6 × 80 = 480 nairas
Hence,
The cost of 80 oranges = 480 nairas
Help me solve this pls:)
Answer:
45
Step-by-step explanation:
it just is
Use the product of powers property to simplify the numeric expression.
4^1/3*4^1/5
Find the value of X and y
x+3
y°
60°
15
Answer:
y = 60°
x = 12
Step-by-step explanation:
opposite angles of a parallelogram are equal
opposite sides of a parallelogram are equal
please help meeeeeeeeeeesssssssssssss
Answer:
384 cm^3
Step-by-step explanation:
(16 times 4) times 6 = 384 :D
Triangle X Y Z is shown. Angle X Y Z is 51 degrees and angle Y Z X is 76 degrees. The length of X Z is 2.6, the length of X Y is z, and Y Z is x. Law of sines: StartFraction sine (uppercase A) Over a EndFraction = StartFraction sine (uppercase B) Over b EndFraction = StartFraction sine (uppercase C) Over c EndFraction Which equation is correct and can be used to solve for the value of z? StartFraction sine (51 degrees) Over 2.6 EndFraction = StartFraction sine (76 degrees) Over z EndFraction StartFraction sine (51 degrees) Over 2.6 EndFraction = StartFraction sine (53 degrees) Over z EndFraction StartFraction sine (76 degrees) Over 2.6 EndFraction = StartFraction sine (51 degrees) Over z EndFraction StartFraction sine (76 degrees) Over 2.6 EndFraction = StartFraction sine (53 degrees) Over z EndFraction
ITS A
Using the law of sines, equation A). [tex]\frac{sin(51)}{2.6} = \frac{sin(76)}{z}[/tex] is correct and can be used to solve for the value of z.
What is law of sines?The law of sine or the sine law states that the ratio of the side length of a triangle to the sine of the opposite angle, which is the same for all three sides. It is also known as the sine rule.
[tex]\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}[/tex]
Similarly, In triangle XYZ,
[tex]\frac{sin(51)}{2.6} = \frac{sin(76)}{z}=\frac{sin(53)}{x}[/tex]
Learn more about law of sines here
https://brainly.com/question/17289163
#SPJ2
Enter one word that applies to all the following blanks, starting with 'v'. Spelling counts. Look it up Ch1 Slides if you are not sure. Statistical techniques are useful to describe and understand ____________________. By ____________________, we mean successive observations of a system or phenomenon do not produce exactly the same result.
Answer:
Variability
Step-by-step explanation:
Variability in simple terms may be described as differences in measurement or reading of a certain construct or phenomenon. Variability measures include range, standard deviation or variance. In most cases, variation or degree of Variability is measured about a central value called the mean. This is because same measurement about a certain phenomenon or study would usually not yield the same result value. Hence, the mean is used to record the average of these measurement and the differences in each measurement from the mean is also recorded, this is called the standard deviation which is a Variability measure.
Thus VARIABILITY means successive observation of a phenomenon do not yield exactly the same result.
Jabari owns 100 shares of Stock A and 45 shares of Stock B. For the past month, his stocks have been fluctuating inversely. Stock A decreased by m cents per share and Stock B increased by n cents per share. Which equation can be used to find the total change in value of Jabari's shares per month
Answer:
what hcomp10 said he is right
Step-by-step explanation:
Answer:
(100-m)+(45+n)
Step-by-step explanation:
100 -n and 45-m. You would have to add them together to get the amount of the shares.
All you need is on the photo
Answer:
a = 2
b = 3
c = -20
Step-by-step explanation:
What is the slope of the line?
Answer:
2
Step-by-step explanation:
Answer:
First the line is positive so you can eliminate all negative choices for slope
Now start from a random point that lands on the graph
Now it can’t be 1 becuase it has am extra box but that line isn’t on a point
Now 1/2 it can’t be becuase if you rise 1 and go right 2 it’ll not land ona. Point
But for 2, you rise up 2 and right 1 and you land on a point on the graph so the final answer is 2
The diameter of a circle is 55 inches.
Find the length of its radius.
Answer:
inches
Answer:
27.5 inches
Step-by-step explanation:
The circle's "radius" refers to the distance from the center towards the circumference. Once the diameter of a circle is given, it is easy to get the radius. In order to get the length of the circle's radius, all you have to do is to divide the diameter (55 inches) into two.
55 inches ÷ 2 = 27.5 inchesTherefore, the circle's distance from the center towards the circumference is 27.5 inches. This is the radius.
express 33 1/2% as fraction
help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!
9514 1404 393
Answer:
second step is wrong; x = 5
Step-by-step explanation:
The correct solution is ...
3(x -3) +9 = 15
3x -9 +9 = 15 . . . . . . . not 3x -3
3x = 15
x = 5
_____
Jeremy did what a lot of students do -- failed to apply the outside factor to all of the terms in parentheses.
Keith's high school played 15 soccer games this year. the team won most of their games. They were defeated during 2 games. Write an equation that represents how many games they won.
Group of answer choices
x - 2 = 15
15 - x = 2
x + 2 = 15
Answer:
13 = x 15 - x = 2
Step-by-step explanation:
15-x=2
15-13=2
solve for c.
c - 7 = -9
Answer:
[tex]c = 2[/tex]
Step-by-step explanation:
In order to find the answer to this question you must add 7 on both sides.
[tex]c-7=-9[/tex]
[tex]+ 7 + 7[/tex]
[tex]-9 + 7 = -2[/tex]
[tex]c = -2[/tex]
Hope this helps.
What is the distance between point (8,4) and point (3,2) rounded to the nearest tenth?
Step-by-step explanation:
the answer of this question is 5.39
Use the distribute property to find two expressions that are equivalent to 7(3x-4)
84 Is the answer thank me later god bless you
Answer:
28
Step-by-step explanation:
7.3
21 x -18 Eeeeeeeee
cddnq Leo a dsiaka
Mila bought slippers worth PHP240.00 with a discount of 25% how much money will she pay
A.PHP 180.00
B.PHP 200.00
C.PHP 220.00
Answer:
A.PHP 180.00
Step-by-step explanation:
Given the following data;
Selling price = PHP240.00
Discount = 25% = 25/100 = 0.25
To find the amount she paid;
Discount price = 240 * 0.25
Discount price = PHP60
Amount paid = Selling price - discount price
Amount paid = 240 - 60
Amount paid = PHP180
Therefore, Mia would pay PHP180 for the slippers.
65,823 - b=41,000 what is the value of b
Answer:
24,823
Step-by-step explanation:
Since we know the answer and the what we're subtracting from we can make an equation like this 65,823 - b = 41,000. Now you solve it by subtracting 65,823 - 41,000 = b. 24,823 = b because if we were to add the smaller numbers like this: 41,000 + 24,823 we would get 65,823 making our answer correct.
9 more than 6 times a number? How is it written as?
Answer:
6x + 9
Step-by-step explanation:
What is the area, in square feet, of the rectangle shown below?
Answer:
D
Step-by-step explanation:
= 34/5 × 19/4
= 646/20
= [tex]32 \frac{6}{20} [/tex]
The area of the given rectangle is [tex]32\frac{6}{20}[/tex] square feet
For better understanding check the calcualtion here .
Calcualtion :
Area of the rectangle is the space inside the given triangle .
Formula : Formula to find the area of the triangle is length times width
Length and width are given as mixed fractions
Lets convert mixed fractions into improper fractions
[tex]Length =6\frac{4}{5}=\frac{6 \cdot 5+4}{5}=\frac{34}{5} \\Width=4\frac{3}{4}=\frac{4 \cdot 4+3}{4}=\frac{19}{4}[/tex]
Now we find out the area
[tex]Area= length \cdot width \\Area=\frac{34}{5} \cdot \frac{19}{4} \\Area= \frac{646}{20}[/tex]
Now we divide the number and find out the quotient and remainder
[tex]Area= \frac{646}{4} \\Quotient = 32 \\remainder =6\\Area= 32\frac{6}{20}[/tex]
The area of the given rectangle is [tex]32\frac{6}{20}[/tex] square feet
Learn more information about 'Area of rectanlge ' here
brainly.com/question/21029878
Question Help
A hiker wants to determine the height of a tree. She measures the tree's shadow to be 29.9 meters long. Her own shadow at the same time is 2.6 meters long. If the
hiker is 1.7 meters tall, how tall is the tree?
The height of the tree is approximately meters.
(Type an integer or decimal rounded to the nearest tenth as needed.)
Answer:
19.6
Step-by-step explanation:
Find 10 onomatopoeia words and use them to write your OWN onomatopoeia poem,
don't copy from the internet, AND I WILL GIVE YOU BRAINLIST
Answer:
“Oh, the bells, bells, bells!
What a tale their terror tells
Of Despair!
How they clang, and clash, and roar!
What a horror they outpour
On the bosom of the palpitating air!
Yet the ear it fully knows,
By the twanging,
And the clanging,
How the danger ebbs and flows;
Yet the ear distinctly tells,
In the jangling,
And the wrangling.”
Step-by-step explanation:
Bam!
went the branch in the night
Swoosh!
goes the wind out of sight
Boom!
says the thunder while it rains
Bang!
when the lightning hits the frame
Slosh!
muddy ground dirty feet
EEK!
screams the children ankle-deep
Splish!
goes the puddles under feet
Squeak!
goes the rubber boots
Ugh!
goes the parents when they're done
Snore!
goes the little tired ones
Question 2
1 pts
David's bicycle has a diameter of 13 inches. If the wheel
makes 20 revolutions, approximately how far will the bicycle
have traveled? Round to the nearest whole number.
The bicycle can travel a total distance of
[ Select]
inches.
V
As a salesperson for an electronic parts distributor, you are given two options for your salary structure. The first option has a base salary of $300 a week plus 4% of all sales made. The second option has a base salary of $100 plus 7.5% commission on all sales. Find the sales amount that will result in the two options having the same weekly salary.
Answer:
The amount of sale is approximately 5714.
Step-by-step explanation:
Let x be the sales made that will result to the same salary and let y be the same weekly salary.
We can represent both salaries as follows:
300 + 0.04x = y
100 + 0.075x = y
Subtracting the second equation from the first, we have:
200 – 0.035x = 0
0.035x= 200
x = 200/0.035
x ≈ 5714.
Therefore, the amount of sale is approximately 5714.
The median of a group of individuals’ BMIs whose BMIs are 20.47, 21.92, 23.32, 23.41, 25.7, and 30.1 is approximately ___.
1
10x – 3 (x – 2y) + = (6x + 8y)
2
Answer:
x=2y
Step-by-step explanation:
How many milligrams of medication are in 75 mL of a 2% solution?
Help