5. Exercise 10.80 (p. 438) Drug absorption Do the problem by hand. Use the rejection region approach to make the decision in part a) ...

      5. Exercise   10.80 (p. 438) Drug absorption   Do the problem by hand. Use the rejection   region approach to make the decision in part a) and calculate the approximate   p-value in part b) to confirm your decision in part a). An experiment was   conducted to compare the mean lengths of time required for the bodily   absorption of two drugs A and B. Ten people were randomly selected and   assigned to receive one of the drugs. The length of time (in minutes) for the   drug to reach a specified level in the blood was recorded, and the data   summary is given in the table:   Drug A   Drug B   x̄1=27.2 x̄2=33.5   S1^2=16.3 S2^2=18.92   a.)Do the data provide sufficient   evidence to indicate a difference in mean times to absorption for the two   drugs? Test using α=.05   b.) Find the approximate p-value for the   test. Does this value confirm your conclusions?   c.)Find a 95% confidence interval for the   difference in mean times to absorption. Does the interval confirm your   conclusions in part a?