Multiple Choice Questions

Before completing the book’s Coder/Hacker chapter exercises, take this multiple-choice pre-test from the end of the chapter. 

Next, visit the Coder and Hacker Chapter exercises page for more.

1: Which of the following tests would be used to test the mean of a continuous variable to a population mean?

  1. One-sample t-test
  2. Independent-samples t-test
  3. Chi-squared t-test
  4. Dependent-samples t-test

Ans: A

2: What is the primary purpose of the three t-tests?

  1. Comparing means among groups
  2. Comparing medians among groups
  3. Examining the relationship between two categorical variables
  4. Identifying normally distributed data

Ans: A

3: Which of the following assumptions does not apply to all three t-tests?

  1. Independent observations
  2. Normal distribution of continuous variable
  3. Homogeneity of variances
  4. Inclusion of one continuous variable

Ans: C

4: Which t-test would you use to compare mean BMI in sets of two brothers?

  1. One-sample t-test
  2. Independent-samples t-test
  3. Chi-squared t-test
  4. Dependent-samples t-test

Ans: D

5: When an independent-samples t-test does not meet the assumption of normality, what is an appropriate alternative test?

  1. Sign test
  2. Levene’s test
  3. Mann-Whitney U test
  4. Dependent-samples t-test

Ans: C