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A large university is considering the establishment of a schoolwide recycling program. To gauge interest in the program by means of a questionnaire, the university takes separate random samples of undergraduate students, graduate students, faculty, and staff. This is an example of what type of sampling design?

a. Simple random sample

b. Stratified random sample

c. Convenience sample

d. Cluster sample

e. Randomized block design

Short Answer

Expert verified

The correct option is - (b) stratified random sample .

Step by step solution

01

Given Information 

We are given random samples of undergraduate students, graduate students , faculty and staff . We need to find out this example falls under which category .

02

Explanation

This will be classified as stratified random sample because the overall population is divided into strata (sub populations based on a variable) : undergraduate students, graduate students, faculty, and staff.

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