Chapter 9, Problem T9.6SPT

To determine

To find: the correct options from the following statement.

Answer to Problem T9.6SPT

Using $\alpha =0.05$ instead of $\alpha =0.01$

Explanation of Solution

You can increase the power by:

Increasing the sample size because having more information about the population will allow us to make better estimations

Increasing the significance level because this increases the probability of making a Type I error and decreases the probability of making a Type II error:

Making the alternative proportion $p$ or mean $\mu$ more extreme

Hence, the correct option is (c)