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Alexxandr [17]
3 years ago
13

Conceptual Set 1. The same researcher wants to then compare the final (time 2) levels of anger in this experimental group to a c

ontrol group that just had the water balloons thrown at them. He compares the group from the previous questions to a group who did not do pushups. Which t-test should he use?
QUESTION 55-Conceptual Set 1. Why should the researcher from question 54 use that test?


A.Because single sample t-tests compare a sample mean to a population mean, which is what the researcher is attempting to do
B. Because single sample t-tests compare scores before and after an event, which is what the researcher isattempting to do
C. Because single sample t-tests compare two completely different groups in a sample, which is what the researcher is attempting to do
D. Because paired samples t-tests compare a sample mean to a population mean, which is what the researcher is attempting to do
E. Because paired samples t-tests compare scores before and after an event, which is what the researcher is attempting to do
F. Because paired samples t-tests compare two completely different groups in a sample, which is what the researcher is attempting to do
G. Because independent sample t-tests compare a sample mean to a population mean, which is what the researcher is attempting to do
H. Because independent sample t-tests compare scores before and after an event, which is what the researcher is attempting to do
I. Because independent sample t-tests compare two completely different groups in a sample, which is what the researcher is attempting to doA
Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

I

Step-by-step explanation:

Because independent sample t-tests compare two completely different groups in a sample, which is what the researcher is attempting to do.

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Find the point P along the directed line segment from point A(–13, 6) to point B(2, 20) that divides the segment in the ratio 2
VARVARA [1.3K]

Answer:

(-4, 14.4)

Step-by-step explanation:

The midpoint formula is expressed as;

M(X, Y) = {(ax1+bx2/a+b), ay1+by2/a+b}

Get X;

X = ax1+bx2/a+b

X = -13(2)+ 2(3)/2+3

X = -26+6/5

X = -20/5

X = -4

Get Y:

Y =ay1+by2/a+b

Y = 2(6)+3(20)/2+3

Y = 12+60/5

Y = 72/5

Y = 14.4

Hence the coordinate of point P dividing A and B in the ratio 2 to 3 is

(-4, 14.4)

5 0
3 years ago
7n - 4 (8n+4) = 159
Romashka [77]

Answer:

n = -7

Step-by-step explanation:

Use distributive property:

7n - 32n - 16 = 159

Combine like terms

-25n - 16 = 159

Add 16 to both sides to isolate variable n

-25n = 175

Divide both sides by -25 to isolate variable n

n = -7

Check your work:

7(-7) - 32(-7) - 16 = 159

-49 + 224 - 16 = 159

159 = 159

5 0
3 years ago
What is the value of the expression shown below? ​
velikii [3]

Answer:

23 1/4

Step-by-step explanation:

3/6 ^ 2 = 1/4

7 * 4 = 28

28 + 1/4 = 113/4

113/4 - 5 = 93/4

93/4 = 23 1/4

4 0
3 years ago
An investor with a stock portfolio worth several hundred thousand dollars sued his broker and brokerage firm because he felt tha
marusya05 [52]

Answer

The answer and procedures of the exercise are attached in the following archives.

Step-by-step explanation:

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  

4 0
4 years ago
Pls help I am failing in this class :((
raketka [301]

Answer:

Step-by-step explanation:

It’s b

4 0
4 years ago
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