Chapter 4 Review Q

You want to run for class president. You stand by the class door and survey every member of your class that walks by. What type of survey did you administer?

• Convenience Survey
• Simple Random Survey
• Stratified Survey
• Cluster Survey

A large company wants to conduct a survey to determine the proportion of its female employees who practice self defense on a regular basis. 4 of its regional offices are randomly selected and all of the women in the offices are surveyed. What type of sampling does this represent?

• Convenience sample
• Cluster random sample
• Simple Random Sample
• Stratified random sample

A researcher wants to test the market on a new beverage. She thinks that age affects preference of drink. Therefore she divides the population into 4 categories and then takes a random sample from each age group. This is an example of

• Systematic Sampling
• Cluster Sampling
• Stratified sampling
• Simple random Sampling

Which of the following situations would be most difficult to use a Census/Survey.

• To determine what proportion of homes in a small town have garages
• To determine what proportion of students at a high school get driven to school by their parents
• To determine what proportion of teachers at a high school love teaching
• To determine what proportion of sharks in the oceans are great white sharks

Isaac wanted to know the mean number of students in mathematics classes at a small high school. What is the best way to collect his data?

• Census
• Convenience sample
• Experiment
• Use the number of students in his own math class a reasonable estimate

Suppose a group of randomly selected people found eating breakfast daily reduces weight. What is a possible confounding variable?

• People who eat breakfast are more likely to exercise
• People who eat breakfast are more likely to read books
• People who eat breakfast are more likely to brush their teeth
• People who eat breakfast are more likely to sleep less

A polling organization randomly sampled 1,287 female US residents between the ages of 40 and 60 and asked them if they agreed that , "My doctor does a good job of listening to my concerns." The population of interest was

• Citizens between the ages of 40-60
• Women
• Women between the ages of 40-60
• Doctors

You want to run for class president. You stand by the class door and survey every member of your class that walks by. What type of survey did you administer?

• Convenience Survey
• Simple Random Survey
• Stratified Survey
• Cluster Survey

A large hotel has just installed an ice cream bar at its pool and would like to gauge its success. The hotel randomly selects 3 of the 32 floors and surveys all residents on those 3 floors. The design of this survey is

• Simple Random Sample
• Cluster sample
• Blocked Sample
• Stratified random sample

If under coverage occurs in a sample, it means that

• The sample did not cover enough subjects
• The sample size was too small because people did not respond
• The question in the sample was not asked in a thorough enough manner as to capture the true feelings of the respondents
• Certain groups of the population were systematically excluded from the sample