a,b,c

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Answer part a,b,c

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7.39 The z statistic, distributions of means, and height,
question 1: Using what we know about the height of
15-year-old girls (again, ți
inches), imagine that a teacher finds the average height
of 14 female students in one of her classes to be 62.4
mches.
= 63.8 imnches and ở 2.66
a Calculate the mean and the standard error of the
distribution of mean heighhts.
b.Caleulato the xtatistic tor this
noup
Transcribed Image Text:7.39 The z statistic, distributions of means, and height, question 1: Using what we know about the height of 15-year-old girls (again, ți inches), imagine that a teacher finds the average height of 14 female students in one of her classes to be 62.4 mches. = 63.8 imnches and ở 2.66 a Calculate the mean and the standard error of the distribution of mean heighhts. b.Caleulato the xtatistic tor this noup
C. What percentage of mean heights, based on a
sample size of 14 students, would we expect to be
shorter than this group?
d. How often do mean heights equal to or more
extreme than this size occur in this population?
e. If statisticians define sample means that occur less
than 5% of the time as "special" or rare, what would
you say about this result?
Transcribed Image Text:C. What percentage of mean heights, based on a sample size of 14 students, would we expect to be shorter than this group? d. How often do mean heights equal to or more extreme than this size occur in this population? e. If statisticians define sample means that occur less than 5% of the time as "special" or rare, what would you say about this result?
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