A sample of 22 public high school students spent an average of 6.5 hours studying per week. Assume the distribution of hours spent studying is near normal and the standard deviation is 2.3 hours, find a 95%confidence interval for the mean number of hours spent studying by public high school students.

A sample of 22 public high school students spent an average of 6.5 hours studying per week. Assume the distribution of hours spent studying is near normal and the standard deviation is 2.3 hours, find a 95%confidence interval for the mean number of hours spent studying by public high school students.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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