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26 February, 12:06

You are conducting a study of students doing work-study jobs on your campus. Among the questions on the survey instrument are the following.

A. How many hours are you scheduled to work each week? Answer to the nearest hour.

B. How applicable is this work experience to your future employment goals? Respond using the following scale: 1 = not at all, 2 = somewhat, 3 = very (a) Suppose you take random samples from the following groups: freshmen, sophomores, juniors, and seniors. What kind of sampling technique are you using (simple random, stratified, systematic, cluster, multistage, convenience) ?

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  1. 26 February, 15:36
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    Stratified sampling technique.

    Step-by-step explanation:

    The type of sampling technique being used is stratified sampling technique. This is a type of sampling where the population under study has a number of distinct categories or sub-groups in which it is divided into. These categories or sub-groups are called strata and are defined by certain characteristics related to the variable or particular finding under interest. The sampling frame can be organized into separate mutually exclusive strata and then each 'stratum' is sampled as an independent sub-population out of which individual elements can be randomly selected. In this case, each unit in a stratum, that is, each element in a group has a chance of being selected. With stratified sampling, the best result occurs when elements within strata are internally homogeneous.
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