Module 12 Practice Questions (2)

Front

What is the null hypothesis in a study examining the relationship between gender and ear piercing?

Back

There is no relationship between gender and ear piercing.

Front

What is the alternative hypothesis in a study examining the relationship between gender and ear piercing?

Back

There is a relationship between gender and ear piercing.

Front

What constitutes strong evidence against the null hypothesis in hypothesis testing?

Back

Obtaining data with a small p-value.

Front

What conclusion can be drawn if the p-value is greater than the significance level of .05?

Back

The data does not provide enough evidence to conclude the two variables are related.

Front

How is the Chi-Square test statistic calculated?

Back

Using the observed and expected counts.

Front

Given an observed count of 60 and an expected count of 50, what is the contribution to the Chi-Square test statistic?

Back

2.00

Front

Define 'p-value' in the context of hypothesis testing.

Back

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

Front

What does a small p-value indicate about the null hypothesis?

Back

A small p-value indicates strong evidence against the null hypothesis.

Front

What is the significance level in hypothesis testing?

Back

The significance level is the threshold at which the null hypothesis is rejected, commonly set at 0.05.

Front

What is the purpose of the Chi-Square test?

Back

To determine if there is a significant association between categorical variables.