Question 4 (a) The mean lifetime of 200 mobile phones in a sample is 1,000 hours and their standard deviation is 130 hours. µ is the mean lifetime of all the mobile phones produced. Test the hypothesis that the sample comes from a population whose mean is 1,200 hours at 1% significance level? Thank you for your afford.
Question 4 (a) The mean lifetime of 200 mobile phones in a sample is 1,000 hours and their standard deviation is 130 hours. µ is the mean lifetime of all the mobile phones produced. Test the hypothesis that the sample comes from a population whose mean is 1,200 hours at 1% significance level? Thank you for your afford.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 4GP
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Question 4
(a) The mean lifetime of 200 mobile phones in a sample is 1,000 hours and their standard deviation
is 130 hours. µ is the mean lifetime of all the mobile phones produced. Test the hypothesis that
the sample comes from a population whose mean is 1,200 hours at 1% significance level?
Thank you for your afford.
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