Answered: The distribution of population of grade…

The distribution of population of grade point averages at a college has 2.71 and standard deviation 0.4. A SRS of 100 of students is selected from the college. The distribution of the

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 7PPS

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Question

The distribution of population of grade point averages at a college has 2.71 and standard deviation 0.4. A SRS of 100 of students is selected from the college.

The distribution of the sample mean \overline{x}x of the grade point averages is:

a. approximately Normal, mean 2.71, standard deviation 0.04.

b. approximately Normal, mean 100, standard deviation 0.4

c. approximately Normal, mean 2.71, standard deviation 0.4.

d. It is not possible to tell because the sample size is too small.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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