Statistics Quiz

When n=23, what is the degree of freedom?

• 22

• 23

• 24

• 25

What is the critical value when Ha: μ>µ0 and α=0.05?

• 0.4500

• 1.64

• 1.65

• 1.645

Which of the following alternative hypotheses is illustrated by the graph above?

• Ha: µ>μ0

• Ha: µ≠μ0

• Ha: µ<μ0

• Ha: µ=μ0

If the computed test statistic is 1.72. What decision can be made?

• Accept H0

• Accept H0 and Ha

• Reject Ha

• Reject H0

If the computed test statistic is 1.25. What decision can be made?

• Accept H0

• Accept H0 and Ha

• Reject Ha

• Reject H0

Which of the following serves a s the basis for either accepting or rejecting a hypothesis?

• Critical Value

• Degree of Freedom

• Significance Level

• z value

What does α=0.05 mean?

• The rejection region has an area of 0.05.

• The rejection region has an area of 0.95.

• The acceptance region has an area of 0.05.

• The acceptance region has an area of 0.95.

The computed test statistic falls within the rejection region, what decision can you make?

• Accept H0

• Accept H0 and Ha

• Reject Ha

• Reject H0

What is referred to as the set of values of test statistic for which the null hypothesis is rejected?

• Critical Value

• Degree of Freedom

• Rejection Region

• Significance Level

The probability of rejecting the null hypothesis when it is true is called

• Critical Value

• Degree of Freedom

• Rejection Region

• Significance Level