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The drug Dramamine was tested for its effectiveness to prevent airsickness compared to placebo. A total...

The drug Dramamine was tested for its effectiveness to prevent airsickness compared to placebo. A total of 216 volunteers were randomly assigned to receive treatment (Dramamine) or control (placebo). Of the 108 volunteers receiving treatments, 31 became airsick; of the 108 volunteers receiving placebo, 60 became airsick.

(a) Make a 2 × 2 table displaying the results.
(b) Set up the hypotheses to test whether Dramamine is effective in reducing the chance of airsickness.

(c) Do a chi-square test of the hypotheses. Use α = 0.05.

Math   Statistics-And-Probability   
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