Module 12 Practice Questions (2)

Front

What is the condition for expected counts to be valid in a Chi-Square test?

Back

All expected counts are at least 5.

Front

What conclusion can be drawn if the p-value is greater than the significance level of 0.05?

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

It is calculated 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

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 is a Chi-Square test used for?

Back

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

Front

What does a p-value represent in hypothesis testing?

Back

The probability of observing the data, or something more extreme, if the null hypothesis is true.

Front

What is the significance level in hypothesis testing?

Back

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

Front

What does it mean if two variables are independent?

Back

The occurrence of one variable does not affect the occurrence of the other.