Answer:
The correct option is b.
Step-by-step explanation:
A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.
It is a hypothesis of no difference.
It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.
For instance, H₀: µ = µ₀, where µ₀ is some null value or some claimed value.
Whereas, the alternate hypothesis is the contradicting statement to the null hypothesis.
The alternate hypothesis describes direction of the hypothesis test, i.e. if the test is left tailed, right tailed or two tailed.
It is also known as the research hypothesis and is denoted by Hₐ.
The research statement is:
"If there is a difference in mean SSHA scores between men and women."
Then the appropriate alternative hypothesis will be:
Hₐ: The population mean for women does not equal the population mean for men, i.e. μ₁ ≠ μ₂
The correct option is b.
Find the midpoint of the line segment with the given endpoints: (6, -5) and (2, 1) *
what is 4.5 x 10 in standard notation
Answer:
45
Step-by-step explanation:
Consider functions f and g
Answer: B
f(g(x)) = (3x - 1)² + 7(3x - 1) = 9x² + 15x - 6
Step-by-step explanation:
-2+2-0-2=?
can someone explain the answer for this
Answer:
-2
Step-by-step explanation:
-2 is two less than 0. if you add 2 to this, you get 0. if you take away 0 from 0, it is still 0. if you take away two from 0, you get -2. so the answer is -2
use the diagram to solve x and y
Answer:
x = 54°
y = 144°
Step-by-step explanation:
x° + 36° = 90° (complementary angles)
Subtract 36° from each side of the equation
x° = 90 - 36°
x = 54°
y° + 36° = 180° (angles on a straight line/supplementary angles)
Subtract 36° from each side
y° = 180° - 36°
y = 144°
BRAINLY FOR WHO EVER ANSWERS FIRST PLS GIVE THE RIGHT ANSWER
Answer:
See attached
Step-by-step explanation:
Table F shows the proportional relationship: y = 2x
Plotted points and a line connecting them is attached
Sarah mailed her computer to Store B for repairs. Her bill was:
Initial Repair Cost = $1,350
Sales Tax of 7 percent = $94.50
Total Cost of Computer Repair = $1,444.50
Shipping = 2 percent of Total Cost
Which expression would you use to find the shipping cost?
0.2($1,350)
0.2($1,444.50)
0.02($1,350)
0.02($1,444.50)
Answer:
0.02 (1444.50)
Step-by-step explanation:
Answer:0.02(1444.50)
Step-by-step:
to figure out the shipping cost we would just multiply the shipping percent by the total cost of the computer. however we cant leave the '2 percent' as it is we would have to multiply it by 100. giving us .02 which we can then use to multiply
Given m|n, find the value of x.
helppp me
plssssssssss
Answer:
the answer is 94
Step-by-step explanation:
Answer:
Step-by-step explanation:
Does anybody know the answer to this math question I’m lost
Answer:
x-7
Step-by-step explanation:
mark is shopping during a computers store 20% sale. He wants to buy computers in the range of $500 to $1000. how much are the computers after 20%
It's £2000 ( don't have the us money sign sorry )
The cost of computer($1000) after sale is $800.
Given that, a computers store 20% sale. He wants to buy computers in the range of $500 to $1000.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
If cost of computer is $500
Then, 20% of 500 = 0.2×500
= $100
So, after sale the cost of computer is 500-100=$400
Similarly, for other cost as well
If cost of computer is $1000
Then, 20% of 1000 = 0.2×1000
= $200
So, after sale the cost of computer is 1000-200=$800
Therefore, the cost of computer($1000) after sale is $800.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ2
The values in the table represent the graph of a continuous function. Which interval must contain an x-intercept? x y –3.1 –1.85 –2.7 –0.84 –2.3 –0.09 –1.9 0.44 –1.5 0.79 –1.1 1.00 –0.7 1.10 –0.3 1.13 0.1 1.13 –3.1 < x < –2.7 –2.3 < x < –1.9 –1.5 < x < –1.1 –0.3 < x < 0.1
Given:
The values in the table represent the graph of a continuous function.
To find:
The interval that must contain an x-intercept.
Solution:
From the given table it is clear that, initially y-values are negative but after negative values we get y=0.44 at x=-1.9.
This signs of y-value are different, it means the graph of continuous function must contain an x-intercept in the interval -2.3 < x < -1.9.
Therefore, the correct option is B.
Answer:
Its , -2.3 < x < -1.9
Step-by-step explanation:
Edge 2020
express each relation as a table and a graph. then state the domain and range.
{(8, 5) , (-6, -9), (2, 5), (0, -8)}
Answer:
domain: {-6, 0, 2, 8}
range: {-9, -8, 5}
dont forget the braces {,}Step-by-step explanation:
12. A drawer contains 2 red socks, 6 white socks,
and 4 blue socks. Without looking, you draw out a
sock, return it, and draw out a second sock. What
is the probability that the first sock is blue and the
second sock is red?
Answer:
Probability that first sock is blue is 0.33 and Probability that second sock is red is 0.16
Step-by-step explanation:
Number of red socks = 2
Number of white socks = 6
Number of blue socks = 4
Total socks in drawer = 2+6+4 = 12
The formula used to calculate probability is: [tex]Probability=\frac{Number \ of \ favourable \ outcomes}{Total \ number \ of \ outcomes}[/tex]
We are given you draw out a sock, return it, and draw out a second sock.
We need to find the probability that the first sock is blue and the second sock is red?
Using formula:
Probability that first sock is blue = 4/12 = 1/3 = 0.33
Probability that second sock is red = 2/12 = 1/6 = 0.16
So, Probability that first sock is blue is 0.33 and Probability that second sock is red is 0.16
A rectangle with area 55 square inches has a length that is four less than three times the width.
Answer:
the length is 11
the width is 5
Step-by-step explanation:
5 times is 15 and 11 is 4 less than 15 :)
solved these easy question.
1+2=
81^x=3 what are the same bases on both sides of the equation
81 = 3⁴, so
81ˣ = 3
(3⁴)ˣ = 3
3⁴ˣ = 3¹
which means
4x = 1
x = 1/4
Enter an equation in point-slope form for the line. (6,8) and (7,1) is on the line. The equation of the line in point slope form is:
Answer:
[tex] y - 8 = -7(x - 6) [/tex] or [tex] y - 1 = -7(x - 7) [/tex]
Step-by-step explanation:
The point-slope form equation is [tex] y - b = m(x - a) [/tex], where,
(a, b) = a point on the line.
[tex] m = slope = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
Given the two points, (6, 8) and (7, 1), find the slope of the line:
[tex] m = \frac{1 - 8}{7 - 6} [/tex]
[tex] m = \frac{-7}{1} [/tex]
[tex] m = -7 [/tex]
There are two possible point-slope equation we can come up with using each points on the line given.
Using the point (6, 8) and m = -7,
Substitute m = -7, a = 6, and b = 8 into [tex] y - b = m(x - a) [/tex]
[tex] y - 8 = -7(x - 6) [/tex]
Using the point (7, 1) and m = -7,
Substitute m = -7, a = 7, and b = 1 into [tex] y - b = m(x - a) [/tex]
[tex] y - 1 = -7(x - 7) [/tex]
#1) **In the xy plane, the graph of which of the following equations has a slope of -2 and goes through the point (3.-5)?
The equation of the line on the xy-coordinate graph ... is the distance from the center of the base to a point on the circumference of the top of the can?
PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I think soup B if i get it wrong sry
Step-by-step explanation:
Answer:
Soup A
Step-by-step explanation:
154 = 11x14
so 7x14 = 98 (answer for soup a ratio table)
154=14x11
for soup b: 6x11 = 66 (answer for soup b ratio table)
soup A has more sodium per cups because it has 98 grams for 154 cups while B only has 66 gram for 154 cups
what is ─2c – 2 = ─3c – 8 solved for the variable?
Answer:
c = -6
Step-by-step explanation:
C is your variable
-2c - 2 = -3c - 8
+3c +2
1c = c -8 +2 = -6
c = -6
:)
[15 points] PLEASE HELP!
A university's freshman class has 4800 students. 76% of those students are majoring in Economics. How many students in the freshman class are Economics majors?
Answer:
the answer is 3648 students
Step-by-step explanation:
kari estimated the quotient of -12 1/5 divided by 4 2/5 to be -8. Which best describes her error?
Answer:
She divided wrong
Step-by-step explanation:
Mrs. Miner bought a 25 ounce smoothies that has 450
calories. How many calories does the smoothie have per
ounce? Pls help me.
Answer:
18
Step-by-step explanation:
450/25=18
16/20 as a decimal?
explain how (-3) x (-3) = 9 using coupons as the real world example
Answer:
a negative multiplied by a negative is always a positive
Step-by-step explanation:
so, -3 x -3 =9
Look at the cups shown below (images are not drawn to scale): A cone is shown with width 3 inches and height 6 inches, and a cylinder is shown with width 3 inches and height 5 inches How many more cubic inches of juice will cup B hold than cup A when both are completely full? Round your answer to the nearest tenth. 18.8 cubic inches 21.2 cubic inches 28.2 cubic inches 49.5 cubic inches
Answer:
cup B can hold 21.2 cubic in more than cup A when theyre both full, so the answer is cup B.
Step-by-step explanation:
enter the value of x. the diagram is not to scale
Answer:
Sorry i cant help
Step-by-step explanation:
Please solve this problem 2(x+1)=2x-3
Answer:
1
Step-by-step explanation:
2(x+1)=2x-32x+2=2x-3-2 -2x0x=11Answer:
no solution
Step-by-step explanation:
distrubute the 2
2x + 1 = 2x -3
subtract the 2x's and you get 1 = -3 which is not true so there is no answer
Assume that emergency medical personnel in California are planning for future resources and it has been observed that the average number of traffic accidents requiring ambulance assistance on the Hollywood Freeway between 7 and 8 AM on Wednesday mornings is 1.1. What, then, is the probability that there need for exactly 2 ambulances on the Freeway during that time slot on any given Wednesday morning?
Answer:
Answer is 0.5
Step-by-step explanation:
The text implies that the number of traffic accidents determines the number of ambulances required on the road. Hence, 1 traffic accident requires 1 ambulance.
The time slot and time of day remain same in both the text and the question.
The average or mean number of accidents is 1.1
QUESTION: What then is the probability that there is need for exactly 2 ambulances on that road and in that time frame?
In other words, what is the probability that there'll be 2 accidents on that road and in that time frame?
Since the mean number of accidents is 1.1, 2 is above the mean.
Probability of 1.1 accidents is 1, since that's the mean (expected value).
Probability of 2 accidents is 1/2 which is = 0.5