QUESTION 1 Create a 95 confidence interval for the mean diff

QUESTION 1

Create a 95% confidence interval for the mean difference in the sales between the middle shelf and the top shelf. Report the lower bound of this interval as your answer.

Save at least 3 decimal places for each part of your calculation. Report your answer with 3 decimal places.

Solution

(21.840, 29.560)

21.840 is the lower bound.