Essay
Laptop Battery Charge Time Narrative
A computer laboratory manager must choose between three brands of battery packs for use in a laboratory of laptop computers. A major concern is the time, in hours, the battery packs will function before needing to be recharged. The manager obtains a random sample of eight observations for each of the three brands and records the following information: 
= 1150.72, and 
= 165.6
-Refer to Laptop Battery Charge Time Narrative. Calculate the test statistic.
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The correction for the mean is CM = 
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= ...View Answer
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