Inferential Procedures Worksheet

Front

What is a matched pairs t-test?

Back

A statistical test used to compare two related samples, where each sample is paired with a corresponding sample in the other group.

Front

When should you use a chi-square test of independence?

Back

When you want to determine if there is a significant association between two categorical variables.

Front

What does a p-value indicate in hypothesis testing?

Back

The probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is true.

Front

What is the chi-square goodness of fit test used for?

Back

To determine if the observed frequency distribution of a categorical variable matches an expected distribution.

Front

Define the power of a statistical test.

Back

The probability that the test correctly rejects a false null hypothesis.

Front

What is the difference between independent samples and matched pairs?

Back

Independent samples are from different groups, while matched pairs are from the same group measured under different conditions.

Front

What is a one-sample t-test?

Back

A statistical test used to determine if the mean of a single sample is significantly different from a known or hypothesized population mean.

Front

What does it mean to fail to reject the null hypothesis?

Back

It means there is not enough evidence to support the alternative hypothesis.

Front

What is a two-proportion z-test?

Back

A statistical test used to compare the proportions of two independent groups.

Front

When is a one-proportion z-test used?

Back

When you want to test the proportion of a single sample against a known population proportion.