AP Stats Hypothesis Tests

The p-value is in the very bottom right corner. What do we sometimes do to it?

• We multiply it by 2 when the HA is β>0 or β<0

• We divide it by 2 when the HA is β>0 or β<0

• We divide it by 2 when the HA is β≠0

• We multiply it by 2 when the HA is β≠0

With this regression output, what's the p-value for an alternate hypothesis of β > 0?

• 0.48

• 0.24

• 0.1058

• 0.02645

• 0.0529

With this regression output, would the regression equation be useful for an alternate hypothesis of β ≠ 0?

• Yes, because you would reject the null hypothesis.

• Yes, because you would fail to reject the null hypothesis.

• No, because you would reject the null hypothesis.

• No, because you would fail to reject the null hypothesis.

With this regression output, would the regression equation be useful for an alternate hypothesis of β > 0?

• Yes, because you would reject the null hypothesis.

• Yes, because you would fail to reject the null hypothesis.

• No, because you would reject the null hypothesis.

• No, because you would fail to reject the null hypothesis.

What's the test statistic for for a hypothesis test?

• -1.75

• -0.57

• -68.08

• -0.01

With this regression output, what would the p-value be for an alternate hypothesis of β > 0?

• 0.048

• 0.096

• 0.024

• 0.001

With this regression output, what would the p-value be for an alternate hypothesis of β ≠ 0?

• 0.048

• 0.096

• 0.024

• 0.001

If you are trying to calculate a p-value with a positive test statistic, where does the positive test statistic go?

• lower:

• upper:

If you are trying to calculate a p-value with a negative test statistic, where does the negative test statistic go?

• lower:

• upper:

Above the regression output is the formula for the confidence interval of the regression slope. What does the red part represent?

• critical value of a t-model

• critical value of a chi-squared model

• p-value

• test statistic