Chapter 10.2, Problem 71E

To determine

To select which of the following interpret P -value in the context of this study.

Answer to Problem 71E

Option (b) is the correct option.

Explanation of Solution

It is given:

  $P=0.002$

The P -value represents the probability of obtaining the observed value or a value more extreme when the null hypothesis is true.

The null hypothesis states that the true mean road rage score is true for males and females.

The correct interpretation of the P -value is then that assuming that the true mean road rage score is different for males and females there is a $0.002$ probability of getting an observed difference at least as extreme as the observed difference. Thus, option (b) is the correct option.