It is a simple random sample and it is normal. In the course of designing theater seats, the sitting heights (in mm) of a simple random sample of adult women is obtained, and the results are listed below.   849     807     821     859     877   848    807   887 Use the sample data to construct a 95% confidence interval estimate of the standard deviation of sitting heights of all women.

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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It is a simple random sample and it is normal.

In the course of designing theater seats, the sitting heights (in mm) of a simple random sample of adult women is obtained, and the results are listed below.  

849     807     821     859     877   848    807   887

Use the sample data to construct a 95% confidence interval estimate of the standard deviation of sitting heights of all women. 

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