It is recommended that adults get 8 hours of sleep each night. A researcher hypo

Question

It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college students got less than the recommended number of hours of sleep each night, on average. After randomly sampling a number of college students the researcher calculated a sample mean of 7.95 hours and obtained a p-value of 0.0001 from a one-sample t-test. Why is the p-value so small when the difference between the sample mean and the hypothesized value of the population mean is only 0.05 hours (3 minutes)? Choose the correct answer below. The sample standard deviation was very large. The sample size was very large. Not enough college students were sampled. A small difference between the sample mean and the hypothesized value of the population mean generally leads to a small p-value.

Explanation / Answer

heree the option is a )

it s because the standard deviation is too large

hence

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