Question :3 A college has decided to add support courses to its statistics classes to assist students… A college has decided to add support courses to its statisticsclasses to assist students. We look at the next semester todetermine if the addition of the support courses assistedstudents. In a sample of 4 courses with support courses theaverage final grade of 160 students was 78% with a standarddeviation of 2%. Calculate a 95% confidence interval for thepopulation mean of students who took a support course. (Typenumbers in Excel calculator without percent sign)(77.69, 78.31)O (77.70, 78.30)O (77.69, 78. 30)O (77.68, 78.31)4 is not larger than 40 so we cannot compute a confidence interval.

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Answered: deviation of 2%. Calculate a 95%…

deviation of 2%. Calculate a 95% confidence interval for the population mean of students who took a support course. (Type numbers in Excel calculator without percent sign)

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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