Chapter 12, Problem 5PT4

To determine

To find: one of the following which explains a Type I error on the basis of given information.

Answer to Problem 5PT4

The FDA finds sufficient evidence that the generic drug does reduce blood pressure as much s the name- brand drug when, in fact, it does not.

Explanation of Solution

Given:

the hypothesis tests

  $\begin{array}{l}{H}_0:{\mu }_G={\mu }_N\\ H_a:{\mu }_G<{\mu }_N\end{array}$

If the null hypothesis is dismissed, it is inferred that the generic brand drug had more of a decline than the name-brand drug. Form I error says this just isn't so. Form I error denies the null hypothesis (generic drug decreases blood pressure rather than the name-brand) while the null hypothesis is correct (no drug differential).

Hence, the correct option is (c)