It has been reported that the average time to download the home page from a government website was 0.9 seconds.Suppose that the download times were normally distributed with a standard deviation of 0.3 seconds.If random samples of 36 download times are selected,calculate the mean of the sampling distribution of the sampling mean.
A)0.3
B)0.15
C)0.9
D)0.05

Question

Quizplus · Accepted Answer

The formula to calculate the mean of the sampling distribution of the sampling mean is:

μx̄ = μ = 0.9

Since the population mean and the sampling mean are the same in this case, the mean of the sampling distribution of the sampling mean is also equal to 0.9 seconds. Therefore, the answer is C) 0.9.

It Has Been Reported That the Average Time to Download