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4. A manufacturer claims that the average life of batteries use in their electronic games is 150 hrs. It is known that standard deviation of this type of battery is 20 hrs. a comsumer wishes to test the manufacturer's claim and accordingly test 100 electronic games using this battery and found out that the mean is equal to 144 hrs. Use a = 5%. Hint: Application of Z Test

4. A manufacturer claims that the average life of batteries use in their electronic games is 150 hrs. It is known that standard deviation of this type of battery is 20 hrs. a comsumer wishes to test the manufacturer's claim and accordingly test 100 electronic games using this battery and found out that the mean is equal to 144 hrs. Use a = 5%. Hint: Application of Z Test

MATLAB: An Introduction with Applications
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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4. A manufacturer claims that the average life of batteries use in their electronic games is 150 hrs. It is known that standard deviation of this type of battery is 20 hrs. a comsumer wishes to test the manufacturer's claim and accordingly test 100 electronic games using this battery and found out that the mean is equal to 144 hrs. Use a = 5%. Hint: Application of Z Test
Transcribed Image Text:4. A manufacturer claims that the average life of batteries use in their electronic games is 150 hrs. It is known that standard deviation of this type of battery is 20 hrs. a comsumer wishes to test the manufacturer's claim and accordingly test 100 electronic games using this battery and found out that the mean is equal to 144 hrs. Use a = 5%. Hint: Application of Z Test
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