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39 The z statistic, distributions of means, and height, question 1: Using what we know about the height of 15-year-old girls (again, a = 63.8 inches and o = 2.66 inches), imagine that a teacher finds the average height of 14 female students in one of her classes to be 62.4 inches. Calculate the mean and the standard error of the distribution of mean heights. b. Caleulate the - statistic tor this group.

39 The z statistic, distributions of means, and height, question 1: Using what we know about the height of 15-year-old girls (again, a = 63.8 inches and o = 2.66 inches), imagine that a teacher finds the average height of 14 female students in one of her classes to be 62.4 inches. Calculate the mean and the standard error of the distribution of mean heights. b. Caleulate the - statistic tor this group.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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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