Add tables, inferences and conclusion if necessary 5. The average test scores in a Physics class arenormally distributed with a standard deviation of 5.4.50 scores with a sample mean of 79 were selectedat random. (a) Find the 95% confidence interval forthe population mean test score. (b) What is the valueof the margin of error? ?

The random variable test score follows normal distribution. The population standard deviation is…

Answered: 5. The average test scores in a Physics…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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5. The average test scores in a Physics class are normally distributed with a standard deviation of 5.4. 50 scores with a sample mean of 79 were selected at random. (a) Find the 95% confidence interval for the population mean test score. (b) What is the value of the margin of error? ?