Questions 1-9. 25 new mothers were investigated about their sleeping hours per day before and after having a baby. Researchers want to know if new mothersā sleeping hours have been significantly reduced. Sample average and sample standard deviation of D (before - after) are computed 2.5 and 4. Please test this hypothesis at 5% significance level and calculate the p-value. Question 4. Find the critical value. Group of answer choices 0.13 1.03 0.05 1.71 Question 5. Make a decision. Group of answer choices Reject H0 at 5% significance level Accept H0 at 5% significance level. Question 6. TRUE/FALSE? We are confident that sleeping hours are reduced. Group of answer choices TRUE FALSE Question 7. TRUE/FALSE? We are not confident that sleeping hours are reduced. Group of answer choices TRUE FALSE
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Step 1
- Null hypothesis (H0): The mean difference in sleeping hours (before - after) is zero, i.e., Ī¼D = 0. - Alternative hypothesis (H1): The mean difference in sleeping hours (before - after) is greater than zero, i.e., Ī¼D > 0. Show moreā¦
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