Some research has indicated that as people age they need less sleep. A random sample of adults was selected and the number of hours that they slept last night was recorded. Simple regression analysis was performed on this sample and the results are attached below. Which of the following statements is true using alphaequals=0.10? LOADING...Click the icon to view the regression results.

A.

Because the90% confidence interval for the population slope does not includezero, we can reject the null hypothesis and conclude that there is a relationship between the hours of sleep and the age of the adult.

B.

Because the90% confidence interval for the population slope includeszero, we fail to reject the null hypothesis and conclude that there is no relationship between the hours of sleep and the age of the adult.

C.

Because the90% confidence interval for the population slope includeszero, we can reject the null hypothesis and conclude that there is a relationship between the hours of sleep and the age of the adult.

D.

Because the90% confidence interval for the population slope does not includezero, we fail to reject the null hypothesis and conclude that there is no relationship between the hours of sleep and the age of the adult.