Stratified sample-clustersample-simple random sample

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Determine what type of sample (stratified sample, clustersample, simple random sample, systematic sample, or conveniencesample) is described in each of the situations below.

a. A researcher randomly selects and interviews 100 male and100 female high school teachers

b. Every 20th person leaving the theater at anewly-premiered movie is surveyed to see if they would recommendthe movie to another person.

c. A researcher for AMTRAC asked all the passengers on 5randomly selected Sunday runs about the quality of service theyreceived.

d. A university student in a statistics class surveys allstudents in the student center from 10 pm to 11 pm to determine whois pleased with the new tuition increase.

e. A lobbyist for a major defense firm assigns a number to eachlegislator in her state. Then a computer is used to randomlygenerate fifteen numbers. The lobbyist contacts the legislatorassigned those fifteen numbers.

Reference no: EM13338503

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