A study was conducted to assess the effectiveness of treating vertigo (motion sickness) with a transdermal therapeutic system (TTS; a patch worn on the skin).Two other treatments, both oral (one pill containing a drug and one a placebo), were used. The age and the gender of the patients for each treatment are listed here.

Is there a significant difference between the mean age of the three test groups? Use a = 0.05 . Use a computer or calculator to complete this exercise.
a. Solve using the p-value approach.
b. Solve using the classical approach.

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