2. The heights are measured for a simple random sample of 9 supermodels. They have a mean of T = 70.0 inches and a standard deviation of s = 1.5 inches. A data set of 40 randomly selected women who are not supermodels has a mean of T = 63.2 inches and a standard deviation of s = 1.27 inches. Use a 0.01 significance level to test the claim that the mean height of supermodels is greater than the mean height of women who are not supermodels.
2. The heights are measured for a simple random sample of 9 supermodels. They have a mean of T = 70.0 inches and a standard deviation of s = 1.5 inches. A data set of 40 randomly selected women who are not supermodels has a mean of T = 63.2 inches and a standard deviation of s = 1.27 inches. Use a 0.01 significance level to test the claim that the mean height of supermodels is greater than the mean height of women who are not supermodels.
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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