Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
8th Edition
ISBN: 9781337114172
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 58SE
Zoo Member Types and Attendance. A zoo has categorized its visitors into three categories: member, school, and general. The member category refers to visitors who pay an annual fee to support the zoo. Members receive certain benefits such as discounts on merchandise and trips planned by the zoo. The school category includes faculty and students from day care and elementary and secondary schools; these visitors generally receive a discounted rate. The general category includes all other visitors. The zoo has been concerned about a recent drop in attendance. To help better understand attendance and membership, a zoo staff member has collected the following data:
- a. Construct a bar chart of total attendance over time. Comment on any trend in the data.
- b. Construct a side-by-side bar chart showing attendance by visitor category with year as the variable on the horizontal axis.
- c. Comment on what is happening to zoo attendance based on the charts from parts (a) and (b).
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3. A zoo has categorized its visitors into three categories: member, school, and general.
The member category refers to visitors who pay an annual fee to support the zoo.
Members receive certain benefits such as discounts on merchandise and tips planned by
the zoo. The school category includes faculty and students from day care and
elementary and secondary schools; these visitors generally receive a discounted rate.
The general category includes all other visitors. The zoo has been concerned about a
recent drop in attendance. To help better understand attendance and membership, a
zoo staff member has collected the following data:
Visitor Category
General
Member
School
Total
Year 1
Year 2
Year 3
Year 4
153,713
158,704
163,433
169,106
115,523
104,795
98,437
81,217
82,885
79,876
81,970
81,290
352,121
343,375
343,840
331,613
a) Construct a bar chart of total attendance over time. Comment on any trend in the data.
b) Construct a side-by side bar chart showing by visitor category with year…
The monthly cost for health care for an employee and two dependents in a certain year is given in the following table.
Provider
Cost
Provider
Cost
Maxicare
$415.31
Kaiser
$4337
Cigna
$424.74
Aetna
$436.26
Health Net
$427.29
Blue Shield
$442.25
Pacific Care
$428.06
Omni Healthcare
$457.90
Redwoods Plan
$431.53
Lifeguard
$457.64
Draw a box plot for the monthly costs of health care (ranked from lowest to highest).
0415
420
425
430
435
440
0425
430
435
440
445
450
455
420
430
440
450
420
430
440
450
Bargain Rental Car wants to better understand the variable and fixed portions of its car washing costs. The company
operates its own car wash facility that cleans each rental car before releasing it to another customer. Management
believes the variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following
data have been compiled:
Month
January
February
March
April
May
June
July
August
September
October
November
December
Rental
Returns
2,400
2,500
2,800
3,100
3,700
5,100
5,600
5,600
Fixed cost per month
Variable cost per rental return
4,700
4,100
2,200
2,900
Exercise 5A-2 Part 2 (Algo)
Car Wash Costs
$ 11,300
$ 13,300
$ 12,100
$ 14,700
$ 16,500
$ 23,900
$ 22,500
$ 22,900
$ 23,100
$ 22,000
$ 11,000
$ 15,300
2. Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to wash cars.
Note: Round Fixed cost to the nearest whole dollar amount and the Variable cost per unit to 2 decimal…
Chapter 2 Solutions
Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
Ch. 2.1 - The response to a question has three alternatives:...Ch. 2.1 - A partial relative frequency distribution is...Ch. 2.1 - A questionnaire provides 58 Yes, 42 No, and 20...Ch. 2.1 - For the 20102011 viewing season, the top five...Ch. 2.1 - In alphabetical order, the six most common last...Ch. 2.1 - Nielsen Media Research provided the list of the 25...Ch. 2.1 - The Canmark Research Center Airport Customer...Ch. 2.1 - Data for a sample of 55 members of the Baseball...Ch. 2.1 - Prob. 9ECh. 2.1 - Online Hotel Ratings. TripAdvisor is one of many...
Ch. 2.2 - Consider the following data. a. Develop a...Ch. 2.2 - Consider the following frequency distribution....Ch. 2.2 - Construct a histogram for the data in exercise 12....Ch. 2.2 - Consider the following data. a. Construct a dot...Ch. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - A doctor’s office staff studied the waiting times...Ch. 2.2 - CBSSports.com developed the Total Player Ratings...Ch. 2.2 - Based on the tons handled in a year, the ports...Ch. 2.2 - CEO Time in Meetings. The London School of...Ch. 2.2 - Prob. 21ECh. 2.2 - Top U.S. Franchises. Entrepreneur magazine ranks...Ch. 2.2 - The DATAfile EngineeringSalary contains the median...Ch. 2.2 - Each year America.EDU ranks the best paying...Ch. 2.2 - Prob. 26ECh. 2.3 - The following data are for 30 observations...Ch. 2.3 - The following observations are for two...Ch. 2.3 - Daytona 500 Automobile Makes Average Speeds. The...Ch. 2.3 - Daytona 500 Average Speeds of Winners. The...Ch. 2.3 - Recently, management at Oak Tree Golf Course...Ch. 2.3 - Household Income Levels. The following...Ch. 2.3 - Values of World’s Most Valuable Brands. Each year...Ch. 2.3 - Revenue of World’s Most Valuable Brands. Refer to...Ch. 2.3 - Prob. 35ECh. 2.4 - The following 20 observations are for two...Ch. 2.4 - Consider the following data on two categorical...Ch. 2.4 - The following crosstabulation summarizes the data...Ch. 2.4 - Driving Speed and Fuel Efficiency. A study on...Ch. 2.4 - The Current Results website lists the average...Ch. 2.4 - Hypertension and Heart Disease. People often wait...Ch. 2.4 - Smartphone Ownership. Consider the following...Ch. 2.4 - Store Managers Time Study. The Northwest regional...Ch. 2 - SAT Scores. The SAT is a standardized test used by...Ch. 2 - Median Household Incomes. The file MedianHousehold...Ch. 2 - State Populations. Data showing the population by...Ch. 2 - A startup companys ability to gain funding is a...Ch. 2 - Complaints Reported to BBB. Consumer complaints...Ch. 2 - The term Beta refers to a measure of a stocks...Ch. 2 - Education Level and Household Income. The U.S....Ch. 2 - Western University has only one womens softball...Ch. 2 - Best Places to Work. Fortune magazine publishes an...Ch. 2 - Prob. 53SECh. 2 - Colleges’ Year Founded and Percent Graduated....Ch. 2 - Colleges’ Year Founded and Cost. Refer to the data...Ch. 2 - Colleges’ Cost and Percent Graduated. Refer to the...Ch. 2 - Google has changed its strategy with regard to how...Ch. 2 - Zoo Member Types and Attendance. A zoo has...Ch. 2 - Pelican Stores, a division of National Clothing,...Ch. 2 - The movie industry is a competitive business. More...Ch. 2 - Cincinnati, Ohio, also known as the Queen City,...
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