MATH 110 Module 6 exam Portage learning SPRING 2024

A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is given to 60 people who have fevers. It is found that the mean time that it takes for the fever to get back to normal for this test group is 350 minutes with a standard deviation of 90 minutes. Find the 80% confidence interval for the mean time that the drug will take to reduce all fevers for all people. Answer the following questions: 1. Multiple choice: Which equation would you use to solve this problem? _ s _ s A ¥—2—=< u< ¥+2— Vn Vn s s B Ii—-t—=< u< ¥+t— vn F Vn s N—-—n s N-—-n C. ¥—-z— < u< ¥+z— VN - nJN-1 1_ D P+ 2 p(l1-p) n 2. List the values you would insert into that equation. 3. State the final answer to the problem Your Answer: 1. A 2. n=60, s=90, |z = 350 3. Table shows z=1.28 350 — — 1.289% {9890 < p < 350 + 1.287% 90 335.13 < p < 364.87