The average usage time of 13 batteries selected from among the
batteries produced in a factory has been calculated as 78, and the
standard deviation of the usage times as 4.3 hours. Test this claim
at the 0.05 significance level.
The average usage time of 13 batteries selected from among the batteries produced in a factory has been calculated as 78
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answerhappygod
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The average usage time of 13 batteries selected from among the batteries produced in a factory has been calculated as 78
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