An important part of employee compensation is a benefits package, which might include health insurance, life insurance, child care, vacation days, retirement plan, parental leave, bonuses, etc. Suppose you want to conduct a survey of benefits packages available in private businesses in Hawaii. You want a sample size of 100. Some sampling techniques are described below. Categorize each technique as simple random sample, stratified sample, systematic sample, cluster sample, or convenience sample. (a) Assign each business on the Island Business Directory a number, and then use a random-number table to select the businesses to be included in the sample. (b) Use postal ZIP Codes to divide the state into regions. Pick a random sample of 10 ZIP Code areas and then include all the businesses in each selected ZIP Code area. (c) Send a team of five research assistants to Bishop Street in downtown Honolulu. Let each assistant select a block or building and interview an employee from each business found. Each researcher can have the rest of the day off after getting responses from 20 different businesses. (d) Use the Island Business Directory. Number all the businesses. Select a starting place at random, and then use the 50th businesses listed until you have 100 businesses. (e) Group the businesses according to type: medical, shipping, retail, manufacturing, financial, construction, restaurant, hotel, tourism, other. Then select a random sample of 10 businesses from each business type.

This scenario indicates simple random sampling because the simple random sampling is done by assigning random number and then by random number table a sample is selected.

b)

This scenario indicates cluster sampling sampling because cluster sampling is done by dividing the population into different clusters and then select the clusters at random and then all the individual in the selected clusters are taken as sample.

c)

This scenario indicates convenience sampling because convenience sampling is a type of non probability sampling in which the samples are not included at random. A sample that is easily accessible is selected in random sampling.

d)

This scenario indicates systematic sampling because systematic sampling is done by taking a k unit and then after every kth unit the sampling units are selected.

e)

This scenario indicates stratified sampling because stratified sampling is done by dividing the population into different strata and then selecting a random sample from each strata.