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
Question
Express the null hypothesis H0 and the alternative hypothesis HA in symbolic form. A cereal company claims that the mean weight of cereal in its packets is less than 14 oz
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