important part or employee compensation \'s a benetirs package, which might incl

Question

important part or employee compensation 's a benetirs package, which might include health insurance, lite insurance, child care vacation days retirement plan, parental leave, bonuses, etc. Suppose you wa 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 randon sample, stratified sample, systematic sample or cluster sampe (a) Assign each business in the Island Business Directory a number, and then use a random-number table to select the businesses to be included In the sample O simple random samploe O stratifled sample O systematic sample O cluster 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. O simple random samplc O stratifled sample O systematic sample O cluster sample (c) Use the Island Buslness Directory. Number all the businesses. Select a starting place at random, and then use every 50th business listed until you have 100 businesses. O simple random samplc O stratifled sample O systematic sample O cluster sample (d) Group the buslnesses according to type: medical, shlpplng, retall, manufacturing, financlal, construction, restaurant, hotel, tourlsm, other. Then select a random sample of 10 businesses from each business type O simple random sample O stratified sample O systematic sample O cluster sample

Explanation / Answer

(a)

Here each business is equally likley to be selected in the sample. So it is a simple random sampling.

(b)

Here first we divide the population into clusters according to zip codes. Then all business of selected clusters included into sample.

It is an exaple of cluster sampling.

(c)

This is systematic sampling.

(d)

Here we have different strata according to business type. It is stratified sampling.

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