To test this, consider the population of differences (weight loss that an overweight adult would experience after 20 weeks on the exercise program) – (weight loss that the same adult would experience after 20 weeks on the strict diet). let μ be the mean of this population of differences, and assume their distribution is approximately normal. we test the hypotheses h 0: μ = 0 versus ha: μ ≠ 0, using the matched pairs t test. what is the p-value for this test?

Latesha moore has a choice at work between a traditional health insurance plan that pays 80 percent of the cost of doctor visits after a $250 deductible and an hmo that charges an $8 co-payment per visit + a $20 monthly premium deduction from her paycheck. latesha anticipates seeing a doctor once a month for her high blood pressure. the cost of each office visit is $50. she normally sees the doctor an average of three times a year for other health concerns. comment on the difference in costs between the two health care plans and the advantages and disadvantages of each.