Basic Facts About Hypothesis Testing

Front

What is the alternative hypothesis in hypothesis testing?

Back

A statement that there is a significant effect or difference.

Front

What is the typical threshold for a significance level in many scientific studies?

Back

0.05

Front

If the p-value is greater than the significance level, what decision should be made regarding the null hypothesis?

Back

Fail to reject the null hypothesis.

Front

Which of the following best describes a p-value?

Back

The probability of observing the data given that the null hypothesis is true.

Front

Which of the following is NOT a possible outcome of hypothesis testing?

Back

Accept the null hypothesis.

Front

What is the null hypothesis in hypothesis testing?

Back

A statement that there is no effect or difference.

Front

What does a significance level of 0.05 indicate?

Back

There is a 5% risk of concluding that a difference exists when there is no actual difference.

Front

What is a Type I error in hypothesis testing?

Back

Rejecting the null hypothesis when it is actually true.

Front

What is a Type II error in hypothesis testing?

Back

Failing to reject the null hypothesis when it is actually false.

Front

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

Back

It means there is sufficient evidence to support the alternative hypothesis.