Medicare spending per patient in different US. metropolitan areas may differ. Based on the sample data below, answerthe questions that followI to determine whether the average spending in the northern region is signicantly 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 $3,914 $7,367 Sample standard deviation $1,449 $3,536 Sample size 14 patients 1? patients [a-1} Choose the appropriate hypotheses. Assume ,UN is the average spending in the northern region and p5 is the average spending in the southern region. a. He: ,UN ,U5 5 0 versus H1: ,UN ,U5 30 b. He: p\" - ,US 2 0 versus H1: tinpg