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hours. Is there a significant difference between the average life of all of the manufacturer's batteries and the average battery life of his sample? Use the one-tailed test at a = 5%.

hours. Is there a significant difference between the average life of all of the manufacturer's batteries and the average battery life of his sample? Use the one-tailed test at a = 5%.

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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|Give it a Try!! USE ANOTHER PIECE OF PAPER FOR THE STEP BY STEP PROCESS. A manufacturer of cellular phone batteries claims that when fully charged, the mean life of his products lasts for 25.5 hours with a standard deviation of 5 hours. Mr. DG, a regular distributor, randomly picked and tested 35 of the batteries. His test showed that the average life of his sample is 24.3 hours. Is there a significant difference between the average life of all of the manufacturer's batteries and the average battery life of his sample? Use the one-tailed test at a = 5%.
Transcribed Image Text:|Give it a Try!! USE ANOTHER PIECE OF PAPER FOR THE STEP BY STEP PROCESS. A manufacturer of cellular phone batteries claims that when fully charged, the mean life of his products lasts for 25.5 hours with a standard deviation of 5 hours. Mr. DG, a regular distributor, randomly picked and tested 35 of the batteries. His test showed that the average life of his sample is 24.3 hours. Is there a significant difference between the average life of all of the manufacturer's batteries and the average battery life of his sample? Use the one-tailed test at a = 5%.
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