Multiple Choice
The quality control manager at a cell phone battery factory needs to determine whether the mean life of a large shipment of batteries is equal to the specified value of 375 hours. The process standard deviation is known to be 100 hours. A random sample of 64 batteries indicates a sample mean of 350 hours.
-The test statistic is _____.
A) -16.00
B) -4.00
C) -2.00
D) 2.00
E) 4.00
Correct Answer:
Verified
Correct Answer:
Verified
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