EBK MODERN BUSINESS STATISTICS WITH MIC
5th Edition
ISBN: 9780100475038
Author: williams
Publisher: YUZU
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Chapter 10.1, Problem 3E
Consider the following hypothesis test.
The following results are for two independent samples taken from the two populations.
| Sample 1 | Sample 2 |
| n1 = 80 | n2 = 70 |
|
|
|
| σ1 = 8.4 | σ2 = 7.6 |
- a. What is the value of the test statistic?
- b. What is the p-value?
- c. With α = .05, what is your hypothesis testing conclusion?
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Which of the following is the correct null hypothesis for a dependent samples t test?
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b.
µD = 0
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Consider the following hypothesis test.
H0: μ1 − μ2 = 0
Ha: μ1 − μ2 ≠ 0
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n1 = 70
n2 = 80
x1 = 106
x2 = 108
σ1 = 8.4
σ2 = 7.6
(a) With α = 0.01, using the p-value approach, what is your hypothesis testing conclusion? Why? Explain
Consider the following hypothesis test.
H0: μ1 − μ2 = 0
Ha: μ1 − μ2 ≠ 0
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n1 = 70
n2 = 80
x1 = 106
x2 = 108
σ1 = 8.4
σ2 = 7.6
(a) What is the p-value? (Round your answer to four decimal places. show work not done on calculator)
(b) With α = 0.01, using the p-value approach, what is your hypothesis testing conclusion? Why? Explain
Chapter 10 Solutions
EBK MODERN BUSINESS STATISTICS WITH MIC
Ch. 10.1 - The following results come from two independent...Ch. 10.1 - 2. Consider the following hypothesis test.
The...Ch. 10.1 - 3. Consider the following hypothesis test.
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