Ch 1 AP Statistics Objectives

Mr. Rogers - AP Statistics Objectives

Unit Plan Ch10 Unit Plan Ch 11 Unit Plan Ch12 Practice Test Standards

AP Statistics Errors and Hypothesis Testing Practice Test

1 ) For a two tailed test with a p=.02, What is the area under the curve associated with p in one of the tails?

2 ) If a confidence interval is tripled, what is the effect on the margin of error?

3 ) If the sample size is increased by a factor of 16, what is the effect on the margin of error?

4 ) If the confidence level is changed from 90% to 95% what is the effect on the margin of error? (assume z-test)

5 ) What conditions must be met in order to use a t-test?

6 ) For a given test of statistical significance alpha = .02 and the p-value = .025. What can you conclude?

7 ) Juan obtains a p-value = .018 in his significance test. How should he interpret it?

8 ) A two tailed quality assurance test has an alpha = 5%. What is the probability of a type I error?

9
) For a quality assurance test what does a type I error mean?

10 ) Which hypothesis is assumed to be true when evaluating the probability of a type I error?

11 ) What is the sum of the probability of a type I and type II error for a given set of circumstances?

12 ) What is the sum of the probability of a type II error and power for a given set of circumstances?

13 ) When is a pooled t-test used?

14 ) In the American justice system, the presumption of innocence until proven guilty can be called the _________________.

15 ) What type of test should be performed to evaluate the data for a matched pairs study.

16 ) A survey of 500 men in Georgia finds that 52% prefer ketchup to mustard while a similar survey in SC with a sample size of 600 says 51% of men prefer ketchup to mustard. Construct a 95% confidence interval for the difference between men from Georgia and SC regarding their ketchup to mustard preferences.

17 ) Is there a statistically significant difference between the two groups in the problem above?

18 ) Women from Georgia weigh 102 lbs on average with an s = 8 lbs based on a sample size of 157. Women from SC weigh 100 lbs on average with an s = 6 lbs based on a sample size of 170. Is there a difference in the weight between the two groups.

		AP Statistics Errors and Hypothesis Testing Practice Test

1	)	For a two tailed test with a p=.02, What is the area under the curve associated with p in one of the tails?

2	)	If a confidence interval is tripled, what is the effect on the margin of error?

3	)	If the sample size is increased by a factor of 16, what is the effect on the margin of error?

4	)	If the confidence level is changed from 90% to 95% what is the effect on the margin of error? (assume z-test)

5	)	What conditions must be met in order to use a t-test?

6	)	For a given test of statistical significance alpha = .02 and the p-value = .025. What can you conclude?

7	)	Juan obtains a p-value = .018 in his significance test. How should he interpret it?

8	)	A two tailed quality assurance test has an alpha = 5%. What is the probability of a type I error?

9	)	For a quality assurance test what does a type I error mean?

10	)	Which hypothesis is assumed to be true when evaluating the probability of a type I error?

11	)	What is the sum of the probability of a type I and type II error for a given set of circumstances?

12	)	What is the sum of the probability of a type II error and power for a given set of circumstances?

13	)	When is a pooled t-test used?

14	)	In the American justice system, the presumption of innocence until proven guilty can be called the _________________.

15	)	What type of test should be performed to evaluate the data for a matched pairs study.

16	)	A survey of 500 men in Georgia finds that 52% prefer ketchup to mustard while a similar survey in SC with a sample size of 600 says 51% of men prefer ketchup to mustard. Construct a 95% confidence interval for the difference between men from Georgia and SC regarding their ketchup to mustard preferences.

17	)	Is there a statistically significant difference between the two groups in the problem above?

18	)	Women from Georgia weigh 102 lbs on average with an s = 8 lbs based on a sample size of 157. Women from SC weigh 100 lbs on average with an s = 6 lbs based on a sample size of 170. Is there a difference in the weight between the two groups.