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95dii
Problem

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Textbook Expert
Textbook ExpertVerified Tutor
10 Nov 2021

Given information

The sample mean is 71 inches, the sample standard deviation is 2.8 inches and the sample size is 48.

From the previous task, the 95% confidence interval for the population mean height is (70.19,71.81).

Step-by-step explanation

Step 1.

Sketch the t distribution showing the confidence interval as shown below:

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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