AP Statistics: Chapter 11 Practice Questions (Multiple Choice)

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A principal orders t-shirts and wants to check some of them to make sure they were printed properly. She randomly selects 2 of the 10 boxes of shirts and checks every shirt in those 2 boxes. What type of sample is this? A. simple random sample B. stratified random sample C. cluster sample D. none of the above

C. cluster sample

A teacher puts students' names in a hat and chooses without looking to get a sample of 3 students. What type of sample is this? A. simple random sample B. stratified random sample C. cluster sample D. none of the above

A. simple random sample

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. A. simple random sample B. stratified random sample C. systematic random sample D. convenience sample

A. simple random sample

Use postal zip codes to divide a state into regions. Pick at random 10 zip codes and survey all hospitals in those regions. A. simple random sample B. systematic random sample C. cluster sample D. convenience sample

C. cluster sample

Group businesses according to type: medical, retail, restaurant, hotel, other. Then select a random sample of 10 businesses from each type. A. simple random sample B. stratified random sample C. cluster sample D. convenience sample

B. stratified random sample

At the beginning of the year, instruct each hospital to survey every 100th patient discharged. A. simple random sample B. stratified random sample C. systematic random sample D. cluster sample

C. systematic random sample

A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public schools. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus, 20 schools were randomly selected and within each of those schools all fifth graders were tested. A. simple random sample B. stratified random sample C. systematic random sample D. cluster sample

D. cluster sample

Interview the first 30 students who enter the school in the morning. A. simple random sample B. stratified random sample C. cluster sample D. convenience sample

D. convenience sample

A quality control worker at a factory selects the first 10 items she sees as her sample for the day. What type of sample is this? A. simple random sample B. stratified random sample C. cluster sample D. none of the above

D. none of the above This is a convenience sample since the employee is choosing a sample that is readily available but not necessarily random.

A store prints a request on each receipt asking customers to fill out a satisfaction survey online if they are willing. What type of sample is this? A. simple random sample B. stratified random sample C. cluster sample D. none of the above

D. none of the above This is a voluntary response sample since the store asks all customers to respond, but the customers themselves choose whether or not to be in the sample.


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