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 80% of the sample means will be between what two values symmetrically distributed around the population mean.
A)[.648 1.152]
B)[.836 .964]
C)[.514 1.280]
D)[.858 .942]

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The Answer of 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 80% of the sample means will be between what two values symmetrically distributed around the population mean.
A)[.648 1.152]
B)[.836 .964]
C)[.514 1.280]
D)[.858 .942]

It Has Been Reported That the Average Time to Download