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A manufacturer of flashlight batteries took a sample of 15 batteries from a day’s production

/in /by

A manufacturer of flashlight batteries took a sample of 15 batteries from a day’s production and used them
continuously until they failed to work. The life lengths of the batteries, in hours, until they failed.

See attached Excel for Data.

At the .05 level of significance, is there evidence to suggest that the mean life length of the batteries produced by this manufacturer is more than 500 hours?

battery data.xlsx 8 KB

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A. Yes, because the p-value for this test is equal to .2978
B. Yes, because the p-value for this test is equal to .1164
C. No, because the p-value for this test is equal to .2978
D. No, because the p-value for this test is equal to .1164
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