4. The results of a taste test between competing soda brands Cola A and Cola B are presented below. Two independent random samples were selected and the respondents rated the colas on a scale of 1 to 10. Cola A: sample size = 38, sample mean = 7.92, sample standard deviation = 2.9 Cola B: sample size = 45, sample mean = 7.22, sample standard deviation = 1.4 %3D Construct a 95% confidence interval for the difference between the average ratings for Cola A and Cola B. State your conclusion in terms of the problem.
4. The results of a taste test between competing soda brands Cola A and Cola B are presented below. Two independent random samples were selected and the respondents rated the colas on a scale of 1 to 10. Cola A: sample size = 38, sample mean = 7.92, sample standard deviation = 2.9 Cola B: sample size = 45, sample mean = 7.22, sample standard deviation = 1.4 %3D Construct a 95% confidence interval for the difference between the average ratings for Cola A and Cola B. State your conclusion in terms of the problem.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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