Question: Suppose that a precise measuring device for new hair growth has been developed and is used in the experiment described in Exercise 19.122. The percentages

Suppose that a precise measuring device for new hair growth has been developed and is used in the experiment described in Exercise 19.122. The percentages of new hair growth for the 30 pairs of men involved in the experiment were recorded. Do these data allow the chemist to conclude that drug B is more effective?

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