An accounting firm has 72 members in 6 departments. Each department has 1 senior

Question

An accounting firm has 72 members in 6 departments. Each department has 1 senior partner (SP), 2 junior partners (JP) and 9 associates (AS). A sample of 12 of the firm's members will be chosen to attend a professional conference. Choose the best description of each of these sampling methods.

Choose the first 12 names on the alphabetical listing of all 72 of the firm's members.   

Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Multistage Sampling
Systematic Sampling
Convenience Sampling

Choose 1 department at random and select every member of that department.   

Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Multistage Sampling
Systematic Sampling
Convenience Sampling

Choose 1 SP at random from the 6 SPs, 2 JPs at random from the 12 JPs, and 9 ASs at random from the 54 ASs.

Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Multistage Sampling
Systematic Sampling
Convenience Sampling

Choose 12 members at random from all 72 of the firm's members.   

Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Multistage Sampling
Systematic Sampling
Convenience Sampling

Rank the firm's members by height and select every sixth person.   

Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Multistage Sampling
Systematic Sampling
Convenience Sampling

Explanation / Answer

Choose the first 12 names on the alphabetical listing of all 72 of the firm's members.   

Answer: Convenience Sampling, because here the selection of members are based on individuals convenient. Each member is not getting equal chance for selection

Choose 1 department at random and select every member of that department.   

Answer: Multistage Sampling

Choose 1 SP at random from the 6 SPs, 2 JPs at random from the 12 JPs, and 9 ASs at random from the 54 ASs.

Answer: Stratified Random Sampling because we create homogenous group of members and than select members from each group randomly.

Choose 12 members at random from all 72 of the firm's members.

Answer: Simple Random Sampling because every member has an equal chance of selection

Rank the firm's members by height and select every sixth person.   

Answer: Systematic Sampling

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