AP Statistics Test 5 Chapter 5 2
AP Statistics Name ____________________________________________
11/6/07 Wood/Myers Period _______
Test #5 (Chapter 5) Honor Pledge ___________________________________
Part I - Multiple Choice (Questions 1-10) – Bubble the answer of your choice on the scantron form.
1. Who makes more mistakes on their income tax forms: accountants or taxpayers who prepare the form themselves? A random sample of income tax forms that were prepared by accountants was drawn from IRS records. An equal number of forms that were self-prepared by taxpayers were also drawn. The average number of errors per form was compared to determine if one group tends to make more mistakes than the other. What type of study is this?
(a) Census
(b) Experiment
(c) Voluntary Response Survey
(d) Observational Study
(e) Matched-Pairs Study
2. A politician is considering running for public office. He wants to measure his name recognition by doing a survey of voters in his district. Which of the following survey methods would produce unbiased results?
(a) The politician stands in front of a grocery store in his district on Saturday morning and asks each person entering the store if he or she recognizes the politician’s name.
(b) Placing pollsters in front of every grocery store in his district on Saturday morning and asking each person entering the store if he or she recognizes the politician’s name.
(c) Sending a survey card to all registered voters in the district asking them to call a phone number to state whether or not they recognize the politician’s name.
(d) Calling people in the district listed in the phone book and asking each if he or she recognizes the politician’s name.
(e) None of these methods would produce unbiased results.
3. A new headache remedy was given to a group of 25 subjects who had headaches. Four hours after taking the new remedy, 20 of the subjects reported that their headaches had disappeared. From this information, you conclude:
(a) that the
11/6/07 Wood/Myers Period _______
Test #5 (Chapter 5) Honor Pledge ___________________________________
Part I - Multiple Choice (Questions 1-10) – Bubble the answer of your choice on the scantron form.
1. Who makes more mistakes on their income tax forms: accountants or taxpayers who prepare the form themselves? A random sample of income tax forms that were prepared by accountants was drawn from IRS records. An equal number of forms that were self-prepared by taxpayers were also drawn. The average number of errors per form was compared to determine if one group tends to make more mistakes than the other. What type of study is this?
(a) Census
(b) Experiment
(c) Voluntary Response Survey
(d) Observational Study
(e) Matched-Pairs Study
2. A politician is considering running for public office. He wants to measure his name recognition by doing a survey of voters in his district. Which of the following survey methods would produce unbiased results?
(a) The politician stands in front of a grocery store in his district on Saturday morning and asks each person entering the store if he or she recognizes the politician’s name.
(b) Placing pollsters in front of every grocery store in his district on Saturday morning and asking each person entering the store if he or she recognizes the politician’s name.
(c) Sending a survey card to all registered voters in the district asking them to call a phone number to state whether or not they recognize the politician’s name.
(d) Calling people in the district listed in the phone book and asking each if he or she recognizes the politician’s name.
(e) None of these methods would produce unbiased results.
3. A new headache remedy was given to a group of 25 subjects who had headaches. Four hours after taking the new remedy, 20 of the subjects reported that their headaches had disappeared. From this information, you conclude:
(a) that the