The height of a population of students have mean 171 cm and standard deviation 32.  a) If a sample of 43 students is selected, approximate the probability that the sample mean of their heights lies between 165 and 176cm . b) Repeat the first part (part a ) if the sample size is 152.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section: Chapter Questions
Problem 27T
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The height of a population of students have mean 171 cm and standard deviation 32. 

a) If a sample of 43 students is selected, approximate the probability that the sample mean of their heights lies between 165 and 176cm .

b) Repeat the first part (part a ) if the sample size is 152.

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