Step 1 of 4: Find the mean of the paired differences, d‾ Round your answer to one decimal place. Step 2 of 4: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Step 3 of 4: Find the standard deviation of the paired differences to be used in constructing the confidence interval. Round your answer to one decimal place. Step 4 of 4: Construct the 95% confidence interval. Round your answers to one decimal place.
Given two dependent random samples with the following results:
| Population 1 | 41 | 33 | 18 | 34 | 42 | 39 | 50 |
|---|---|---|---|---|---|---|---|
| Population 2 | 50 | 29 | 29 | 28 | 47 | 24 | 44
Use this data to find the 95%confidence interval for the true difference between the population means. Let d=(Population 1 entry)−(Population 2 entry). Assume that both populations are
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Find the mean of the paired differences, d‾ Round your answer to one decimal place.
Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
Find the standard deviation of the paired differences to be used in constructing the confidence interval. Round your answer to one decimal place.
Construct the 95% confidence interval. Round your answers to one decimal place.
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