7) A sociologist develops a test to measure attitudes about public transportation, and 11 randomly selected subjects are given the test. From this sample, their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the mean score of all such subjects. Assume the population is normally distributed. A) (64.5, 87.9) B) (61.8, 90.6) C) (63.6, 88.8) D) (64.2, 88.2) E) (69.2, 83.2)
7) A sociologist develops a test to measure attitudes about public transportation, and 11 randomly selected subjects are given the test. From this sample, their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the mean score of all such subjects. Assume the population is normally distributed. A) (64.5, 87.9) B) (61.8, 90.6) C) (63.6, 88.8) D) (64.2, 88.2) E) (69.2, 83.2)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A sociologist develops a test to measure attitudes about public transportation and 11 randomly selected subjects are given the test. From this sample, their mean score is 76.2 and their standard deviation is 21.4. construct the 95% confidence interval for mean score of all such subjects. Assume the population is
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