Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 3CE
A politician who is running for the office of mayor of a city with 25,000 registered voters commissions a survey. In the survey, 48% of the 200 registered voters interviewed say they plan to vote for her.
- a. What is the population of interest?
- b. What is the sample?
- c. Is the value 48% a parameter or a statistic? Explain.
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Question 13
Consider the Republic of Ashbury and apportion 250 seats among the five states using Webster's method. Use the
population from the table below. You can use a spreadsheet to help you figure out an answer or calculate using a
calculator. Find:
the standard divisor,
the modified divisor, and
• the distribution of representatives to each state.
Representative Seats
250
Modified
Standard
Rounded Modify
State
Population
Lower
Quotas
Quotas
Quotas
Quotas
A
1,230,520
В
1,230,600
4,999,700
815,000
875,500
Total
9,151,320
Standard Divisor
Modified Divisor
a. Standard divisor: 36,605.28
Modified divisor: 36,629
States: A:34, B: 34, C: 136, D:22, E:24
X b. Standard divisor: 36,605.28
Modified divisor: 36,627
States: A:34, B: 34, C: 136, D:22, E:24
c. Standard divisor: 36,605.28
Modified divisor: 36,630
States: A:34, B: 33, C: 137, D:22, E:24
d. Standard divisor: 36,605.28
Modified divisor: 36,627
States: A:34, B: 34, C: 136, D:23, E:23
Select the scenario which is an example of voluntary sampling.
Answer
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An airline is interested in getting feedback about their on-board catering experience. They place a questionnaire in the pocket behind each airline seat for passengers to
O
fill out.
An urban planner is interested in determining the traffic volume along a particular road. To estimate the traffic volume, he counts the number of cars that go by during
the next 30 minutes.
O To determine the mean domestic electricity consumption in the region, the electric company collects data from randomly selected households in the given region.
A fitness center has 400 male clients and 300 female clients. They plan to buy new equipment, so they randomly select 80 male clients and 60 female clients and ask
them what equipment they use the most.
If we segment a market by demographics, which of the following measures will be used?
Choose one answer.
Customers’ interests
Usage
Average income
Region
Chapter 1 Solutions
Statistics for Management and Economics (Book Only)
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