When testing a new drug, scientists measure the amount of the active ingredients that
is absorbed by the body. In a study done, a new antifungal medication that was
designed to be applied to the skin was tested. The medication was applied to the skin
of eight adults. One hour later, the amount of active ingredients that had been
absorbed into the skin was measured for each subject. The results, in micrograms,
were
1.28 1.81 2.71 3.13 1.55 2.55 3.36 3.86
Determine whether the mean amount absorbed is greater that 2 micrograms. Use
= 0.05 level of significance.
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