Medicare spending per patient in different U.S. metropolitan areas may differ. B
ID: 3156838 • Letter: M
Question
Medicare spending per patient in different U.S. metropolitan areas may differ. Based on the sample data below, answer the questions that follow to determine whether the average spending in the northern region is significantly less than the average spending in the southern region at the 1 percent level.
Medicare Spending per Patient (adjusted for age, sex, and race)
Southern Region
1) Choose the appropriate hypotheses. Assume N is the average spending in the northern region and Sis the average spending in the southern region. Plese select the correct answer.
B) H0: N S 0 versus H1: N – S >0
2) Specify the decision rule. (Use quick rule to determine degrees of freedom. Round your answer to 3 decimal places. Negative value should be indicated by a minus sign.)
Reject the null hypothesis if tcalc <___________ (fill in the blank).
Medicare spending per patient in different U.S. metropolitan areas may differ. Based on the sample data below, answer the questions that follow to determine whether the average spending in the northern region is significantly less than the average spending in the southern region at the 1 percent level.
Explanation / Answer
degree of freedom=14+17-2=29
Reject the null hypothesis if tcalc <-2.462