A tablet computer manufacturer claims that its batteries last an average of 10.5 hours when playing videos. The quality control department randomly selects 20 tablets from each day's production and tests the batteries by playing a video repeatedly until the battery dies. The quality control department will reject the batteries from that day's production run if the mean battery life is less than 10.5 hours. Here are the data from one day: 10.3 10.0 10.3 10.6 10.5 10.3 10.1 10.6 11.5 10.3 10.3 12.7 10.6 11.3 13.9 12.5 12.4 10.8 10.2 12.2 The quality control department will test
A tablet computer manufacturer claims that its batteries last an average of 10.5 hours when playing videos. The quality control department randomly selects 20 tablets from each day's production and tests the batteries by playing a video repeatedly until the battery dies. The quality control department will reject the batteries from that day's production run if the mean battery life is less than 10.5 hours. Here are the data from one day: 10.3 10.0 10.3 10.6 10.5 10.3 10.1 10.6 11.5 10.3 10.3 12.7 10.6 11.3 13.9 12.5 12.4 10.8 10.2 12.2 The quality control department will test
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A tablet computer manufacturer claims that its batteries last an average of 10.5 hours
when playing videos. The quality control department randomly selects 20 tablets from each
day's production and tests the batteries by playing a video repeatedly until the battery dies.
The quality control department will reject the batteries from that day's production run if
the mean battery life is less than 10.5 hours. Here are the data from one day:
10.3 10.0 10.3 10.6 10.5 10.3 10.1 10.6 11.5 10.3
10.3 12.7 10.6 11.3 13.9 12.5 12.4 10.8 10.2 12.2
The quality control department will test
the hypotheses
where p
true mean battery life (in
hours) while playing videos for tablets
made during that day. Check that the
conditions for performing the test
are met.
Assume the population is normally distributed.
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e
d
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Ho:μ = 50
Ha:μl < 50
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Mar 29
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