Check my 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) Statistic Northern Region Southern Region Sample mean $ 3, 905 $ 7, 368 Sample standard deviation $ 1, 534 $ 3, 580 Sample size 13 patients 16 patients (a-1) Choose the appropriate hypotheses. Assume IN is the average spending in the northern region and Us is the average spending in the southern region. a. Ho- UN - Us 5 0 versus H1: UN - Us >0 b. Ho: UN - HS 2 0 versus H1: IN - Us