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BUSI 230 Week 1 exercises 1.1-2.1 Liberty University Complete Answers
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BUSI 230 Week 1 exercises 1.1-2.1 Liberty University Complete Answers

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Question 1

Categorize these measurements associated with student life according to level: nominal, ordinal, interval, or ratio.

(a) Length of time to complete an exam

(b) Time of first class

(c) Major field of study

(d) Course evaluation scale: poor, acceptable, good

(e) Score on last exam (based on 100 possible points)

(f) Age of student

Question 2

A data set has values ranging from a low of 10 to a high of 50. What's wrong with using the class limits 10-20, 20-30, 30-40, 40-50 for a frequency table?

Question 3

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 in 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 every 50th business 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.

Question 4

Numbers are often assigned to data that are categorical in nature.

(a) Consider these number assignments for category items describing electronic ways of expressing personal opinions.

1 = Twitter; 2 = e-mail; 3 = text message; 4 = Facebook; 5 = blog

Are these numerical assignments at the ordinal data level or higher? Explain.

(b) Consider these number assignments for category items describing usefulness of customer service.

1 = not helpful; 2 = somewhat helpful; 3 = very helpful; 4 = extremely helpful

Are these numerical assignments at the ordinal data level? Explain.

What about at the interval level or higher? Explain.

Question 5

Explain the difference between a simple random sample and a systematic sample. (Select all that apply.)

Question 6

How long does it take to finish the 1161-mile Iditarod Dog Sled Race from Anchorage to Nome, Alaska? Finish times (to the nearest hour) for 57 dogsled teams are shown below.

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BUSI 230 Week 1 exercises 1.1-2.1 Liberty University Complete Answers
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Question 1 Categorize these measurements associated with student life according to level: nominal, ordinal, interval, or ratio. (a) Length of time to complete an exam (b) Time of first class (c) Major field of study (d) Course evaluation scale: poor, acceptable, good (e) Score on last exam (based on 100 possible points) (f) Age of student 1) ratio 2) interval 3)nominal 4) ordinal 5) ratio 6) ratio Question 2 A data set has values ranging...
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