Looking at First-year student sleep Example: In the general population of U.S./C

Question

Looking at First-year student sleep Example:

In the general population of U.S./Canadian university students: – Average nightly hours of sleep = 7 – Standard deviation = 1.5

In a sample of first-year students from the Making the Transition study: – n = 167 – Average nightly hours of sleep = 6.68 – Standard error of the mean: 1.5/sqrt167=0.12

H0: First-year students from Making the Transition sleep the same number of hours at night compared to the population

H1: First-year students from Making the Transition do not get the same hours of sleep at night as students in the general population

xlower = 7 + (1.96)(.12) = 6.76

xupper = 7 + (1.96)(.12) = 7.24

Question is: We reported a sample size of 167, but suppose we only collected data from 90 students instead. If we obtained the same sample mean of 6.68 hours of sleep, would our decision to reject/retain the null hypothesis change? Why or why not?

Explanation / Answer

The test statistic would be 0, and p value wil be 1 which indicates test will not be significant. Thus, null hypothesis cannot be rejected.

Related Questions

Navigate

• Browse (All)
• Browse L
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.