QUIZ 2
Stat 101
Quiz 2 Spring 2002
Course Component Value: [6]Name: ______
Instructions: Answer all items. Where appropriate show all work – the answer is only worth part of the value of the question. USE A PENCIL.
1)[4] An important part of employee compensation is a benefits package that might include health insurance, life insurance, childcare, vacation days, retirement plan, parental leave, and bonuses. Suppose you want to conduct a survey of benefit packages available in private businesses in Hawaii. You want a sample size of 100. Some sampling techniques are described below. Categorize each technique as one of the following six sampling approaches. Place the letter associated with a sampling approach in the space provided.
A) simple random sampleD) convenience samplingG) Multi-stage sampling
B) stratified sampleE) cluster sampling
C) systematic sampleF) quota sampling
_____ 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.
_____Use the 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.
_____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.
_____Use the Island Business Directory. Number all of the businesses. Select a starting place at random, and
then use every 50th business listed until you have 100 businesses.
_____Group the businesses according to type: medical, shipping, retail, manufacturing, financial, construction,
restaurant, hotel, tourism, and other. Then select a random sample of 10 businesses from each business
type.
2)[2] Having completed the above survey, you now have an idea of the types of benefits plans in place for employees in local businesses. It is now time to turn your attention examining benefits concerns of your company’s employees. Hawaii Widget, Inc. is an international business located in Honolulu’s Southern Industrial Park. The company makes widgets and thingamajigs. The employees include 525 machine operators, 24 custodial personnel, 400 sales representatives (worldwide) and 51 professionals/executives. Select a sample of 100 employees to be surveyed about the current benefits package and possible changes. The sample is to be selected in proportion to the number of employees in each of the four job categories.
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f:Quiz 2 sp2002.doc