A recent study showed that the residents of a local town reported sleeping an average of u =7.97 hours each night with a standard deviation of o =0.424. A random sample of 10 residents had a sample mean of X =7.766. Find the z-value of this sample mean. Write your answer to two decimal places.

Given : sample mean= x̅ = 7.766 population mean=μ = 7.97

Answered: t the residents of a local town…

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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t the residents of a local town reported sleeping an average of a=7.97 hours each night with a standard deviation of o 0.424. A random sample of 10 residents had a sample mean of A this sample mean. Write your answer to two decimal places.