Hypothesis Testing Quiz

What is the Alternative hypothesis?

• A. Sampling error is significant

• B. There is an effect

• C. No effect

• D. Null hypothesis is correct

What is the goal of Null Hypothesis Testing?

• A. To prove the null hypothesis

• B. To find significant sampling error

• C. To rule out random variability as an explanation for the effect

• D. To test if the data is valid

What does p > 0.05 signify?

• A. Fail to reject the null hypothesis

• B. Reject the null hypothesis

• C. Reject the alternative hypothesis

• D. Reject the data

What is a characteristic of all research conclusions?

• A. All research conclusions are absolute

• B. You can prove the null hypothesis is false

• C. Research conclusions are probabilistic and cannot definitively prove or disprove the null hypothesis

• D. You can prove the alternative hypothesis is false

What does p < 0.05 signify?

• A. Fail to reject the null hypothesis

• B. Reject the null hypothesis

• C. Fail to accept the alternative hypothesis

• D. Reject the data

What is the Null hypothesis?

• A. There is an effect

• B. No effect

• C. Sample error

• D. Variability

What does Alpha represent?

• A. The probability of the alternative hypothesis

• B. The accepted likelihood of deviation from the null hypothesis

• C. The rate of false positives

• D. The significance of the sample

What is Statistical Significance?

• A. The threshold is set to 0.10

• B. Results from chance alone are considered valid

• C. The threshold for significance is set to 0.05

• D. Statistical significance is not related to chance

What does the p-value NOT represent?

• A. The probability of the sample

• B. The likelihood of the null hypothesis being correct

• C. The chance of accepting the null hypothesis

• D. The likelihood of rejecting the alternative hypothesis

What is a p-value?

• A. The likelihood that the alternative hypothesis is correct

• B. The chance the null hypothesis is wrong

• C. The probability of the null hypothesis being correct

• D. The probability that the sample diverges from the null by a specific amount