12 May 5. Exercise 10.80 (p. 438) Drug absorption
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?
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