# Multiple choice questions

Quizzes are available to test your understanding of the key concepts covered in each chapter. Click on the quiz below to get started.

1. Below is a histogram of ratings of Britney Spears’s CD, *Britney*. What can we say about the data from this histogram?

- The data are normally distributed.
- The median rating was 2.
- The modal score is 5.
- The data are leptokurtic.

The correct answer is c) The modal score is 5. This is because the tallest bar represents the mode, and this bar is for a rating of 5.

2. In a small data sample (*N* = 20), what can we say about a *z*-score of 2.37?

- It is significant at p < .05
- It is significant at p < .001
- It is significant at p < .01
- It is non-significant

The correct answer is a) It is significant at p < .05. This is because an absolute value greater than 1.96 is significant at *p *< .05, above 2.58 is significant at *p *< .01 and above 3.29 is significant at *p *< .001