10. Hypothesis Test for Two Populations including t-Test for μ1-μ1 t-Test for μd F-Test for We...
10.
Hypothesis Test for Two Populations including
- t-Test for μ1-μ1
- t-Test for μd
- F-Test for
We are interested in determining whether or not the variances of the sales at two small grocery stores are equal. A sample of 21 days of sales at Store A and a sample of 16 days of sales at Store B indicated the following
| Store A | Store B |
| nA=21 | nB=16 |
| SA=28.284 |
SB=20 |
Which of the following is critical values of F at 95% confidence?
Group of answer choices
A. a and d
B. 2.57
C. 0.3891
D. 0.3623
E. 2.76
Homework Answers
Answer: B) 2.57
Explanation:
The degrees of freedom for numerator = 21-1 =20
The degrees of freedom for denominator =16-1 =15
The critical values of F at 95% confidence and (20, 15) df =2.57
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10.
Hypothesis Test for Two Populations including
t-Test for μ1-μ1
t-Test for μd
F-Test for
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