Answered: When 10 men and 10 women were randomly…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 4CR

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When 10 men and 10 women were randomly selected, the length of their right foot was measured in centimeters from the back of their heel to the tip of their toe. The results are summarized below. see attache

Estimate the actual difference in the mean right foot length of men and women? Construct the confidence interval estimate under the assumption that the right foot length of both men and women reasonably follow a normal distribution. Express the estimate both symbolically and verbally.

Sample
Length (in cm) of Right Foot
Men
25.6
27.9
28.2
27.5
27.0
26.8
29.1
28.6
25.8
27.4
Women
24.5
22.3
25.2
24.3
25.8
26.1
25.4
25.7
24.3
24.6

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