A study of postoperative pain relief is conducted to determine if drug A has a significantly longer duration of pain relief than drug B. Observations of the hours of pain relief are recorded for 55 patients given drug A and 58 patients given drug B. The summary statistics are

(a) Formulate H0 and H1.
(b) State the test statistic and the rejection region with α = .10.
(c) State the conclusion of your test with α = .10. Also, find the P-value and comment.

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Mean Standard deviation 1.25 1.82 4.64 4.03