AP Stats Identify Tests

Find the critical value(s) for a test using the following hypotheses and a 5% significance level.

• Z* = -1.960

• Z* = -1.645

• Z* = 1.645

• |Z*|= 1.645

What is it called when something is unlikely to happen by chance alone?

• statistically significant

• alpha

• confidence level

• probability

A sports publication states that 32% of married men cannot watch football games because their wives prevent it.  You think that this is untrue.  What is your null hypothesis?

• The proportion of married men who cannot watch football because their wives prevent it is 0.32.

• The proportion of married men who cannot watch football because their wives prevent it is greater than 0.32.

• The proportion of married men who cannot watch football because their wives prevent it is less than 0.32.

• The proportion of married men who cannot watch football because their wives prevent it is not 0.32.

• A
• B
• C
• D

The p-value of a hypothesis test is .0281.  Is this result significant at the 5% significance level?

• Yes, because .0281 > .05.

• Yes, because .0281 < .05.

• No, because .0281 < .05.

• No, because .0281 > .05.

Find the critical value(s) for a test using the following hypotheses and a 5% significance level.

• |Z*| = 1.960

• |Z*| = 1.645

• |Z*| = 2.576

• |Z*| = .90

Find the critical value(s) for a test using the following hypotheses and a 10% significance level.

• |Z*|= 1.282

• Z*= -1.645

• |Z*|= 1.645

• Z*= -1.282

Given the following scenario, state whether we would fail to reject or reject the null. 

• Reject H₀

• Do no reject H₀

Given the following scenario, state whether we would fail to reject or reject the null. 

• Reject H₀

• Do not reject H₀

• A
• B
• C
• D