A consumer organization collected data on two types of automobile batteries, A and B. Both populations are nomally distributed with standard deviations of 1.29 for batteries A and 0.88 for batteries B. The summary statistics for 40 observations of cach type yielding average mean of 32.25 hours and 29.81 hours for batteries A and batteries B respectively. Constnuet 90% confidence interval for difference between means life hours for batteries A and batteries B.

MATLAB: An Introduction with Applications
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A consumer organization collected data on two types of automobile batteries,
A and B. Both populations are nomnally distributed with standard deviations of 1.29 for
batteries A and 0.88 for batteries B. The summary statistics for 40 observations of cach type
yielding average mean of 32.25 hours and 29.81 hours for batteries A and batteries B
respectively. Constnuet 90% confidence interval for difference between means life hours for
batteries A and batteries B.
Transcribed Image Text:A consumer organization collected data on two types of automobile batteries, A and B. Both populations are nomnally distributed with standard deviations of 1.29 for batteries A and 0.88 for batteries B. The summary statistics for 40 observations of cach type yielding average mean of 32.25 hours and 29.81 hours for batteries A and batteries B respectively. Constnuet 90% confidence interval for difference between means life hours for batteries A and batteries B.
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