Investigators want to test whether people who worked overnight
shifts reported less sleep per day than the general population.
They conduct a one-tailed, one-sample t-test, comparing the mean
number of hours of sleep in a sample of people who worked overnight
shifts (sample mean= 6.5 hours) to the general population mean of
7.5 hours. Their calculated t-statistic had a corresponding p-value
of 0.0345. Which of the following represents the best
interpretation of this p-value? A)Group of answer choices
3.45% of people who worked overnight shifts reported more than 7.5
hours of sleep per day. B)The probability that a person who works
overnight shifts will get 7.5 hours of sleep or more per day is
3.45%. C)The probability of obtaining a result as extreme or more
extreme than the one observed if the null hypothesis is true is
3.45%. D)The probability that a person who works overnight
shifts will get 6.5 hours of sleep or more per day is 3.45%.
E)The probability of obtaining a result less extreme than the one
observed if the null hypothesis was true is 3.45%.
Investigators want to test whether people who worked overnight shifts reported less sleep per day than the general popul
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am