Answer:
The standard deviation of the sampling distribution of sample means for whenever service life is in control 10 hours.
Step-by-step explanation:
The standard error () of the mean is the standard deviation of the sampling distribution of the mean.
The formula to compute the standard error is:
The information provided is:
Compute the standard deviation of the sampling distribution of sample means for whenever service life is in control as follows:
Thus, the standard deviation of the sampling distribution of sample means for whenever service life is in control 10 hours.