Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Chapter 2.3, Problem 50E
To determine
Determine the choice of light beers differs between genders.
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OA large city hospital conducted a study to investigate the relationship between the number of unauthorized days that employees are absent per year and the
distance (miles) between home and work for the employees. A sample of 10 employees was selected and the following data were collected.
D Excel file: data14-13.xlsx
Distance to Work
Number of Days
(miles)
Absent
8.
8.
9.
8
6.
10
12
14
14
4
18
If required, enter negative values as negative numbers.
a. Select the correct scatter diagram for these data.
A.
Number of Days Absent
10+
8+ .
6-
2+
8.
10
12
14
16
18
20
Distance to Work (miles)
4.
The management of a certain company would like to use the following data to learn about its customer base and to evaluate the first day promotional campaign purchases. Customers who made purchases with discount coupons were labelled as “Promotional Customers”, and “Regular Customers” was used for those who did not use coupons.
Customer
Type of Customer
Items
Net Sales (GH¢)
Method of Payment
Gender
Marital Status
Age
1
Regular
1
100
Vodacash
Male
Married
32
2
Promotional
1
105
MTN mobile money
Female
Single
36
3
Regular
1
230
Airtel money
Female
Married
32
4
Promotional
5
300
MTN mobile money
Male
Married
28
5
Regular
2
150
Vodacash
Female
Single
34
6
Regular
20
450
Vodacash
Female
Married
44
7
Promotional
2
78
MTN mobile money
Male
Married
30
8
Promotional
3
120
MTN mobile money
Female
Single
22
9
Promotional
6
345…
2. To help determine how many beers to stock the concession manager at Yankee Stadium
wanted to know how the temperature affected beer sales. Accordingly, she took a sample of 10
games and recorded the number of beers sold and the temperature in the middle of the game.
Temperature 80
68
78
79
87
Number of
20,533
1,439
13,829
21,286
30,985
beers
Temperature 74
86
92
77
84
Number of
17,187
30,240
37,596
9,610
28,742
beers
a. Predict with 90% confidence the number of beers to be sold when temperature is 75
degrees.
b. Calculate and plot the residuals and predicted values of y.
Chapter 2 Solutions
Statistics for Management and Economics (Book Only)
Ch. 2.1 - Prob. 1ECh. 2.1 - Prob. 2ECh. 2.1 - Prob. 3ECh. 2.1 - Prob. 4ECh. 2.1 - Prob. 5ECh. 2.1 - Prob. 6ECh. 2.1 - Prob. 7ECh. 2.1 - Prob. 8ECh. 2.1 - Prob. 9ECh. 2.1 - Prob. 10E
Ch. 2.1 - Prob. 11ECh. 2.1 - Prob. 12ECh. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - Prob. 18ECh. 2.2 - Prob. 19ECh. 2.2 - Prob. 20ECh. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 2.2 - Prob. 25ECh. 2.2 - Prob. 26ECh. 2.2 - Prob. 27ECh. 2.2 - Prob. 28ECh. 2.2 - Prob. 29ECh. 2.2 - Prob. 30ECh. 2.2 - Prob. 31ECh. 2.2 - Prob. 32ECh. 2.2 - Prob. 33ECh. 2.2 - Prob. 34ECh. 2.2 - Prob. 35ECh. 2.2 - Prob. 36ECh. 2.2 - Prob. 37ECh. 2.2 - Prob. 38ECh. 2.2 - Prob. 39ECh. 2.2 - Prob. 40ECh. 2.3 - Prob. 41ECh. 2.3 - Prob. 42ECh. 2.3 - Prob. 43ECh. 2.3 - Prob. 44ECh. 2.3 - Prob. 45ECh. 2.3 - Prob. 46ECh. 2.3 - Prob. 47ECh. 2.3 - Prob. 48ECh. 2.3 - Prob. 49ECh. 2.3 - Prob. 50ECh. 2.3 - Prob. 51ECh. 2.3 - Prob. 52ECh. 2.3 - Prob. 53ECh. 2.3 - Prob. 54ECh. 2 - Prob. 55CECh. 2 - Prob. 56CECh. 2 - Prob. 57CECh. 2 - Prob. 58CECh. 2 - Prob. 59CECh. 2 - Prob. 60CECh. 2 - Prob. 61CECh. 2 - Prob. 62CECh. 2 - Prob. 63CECh. 2 - Prob. 64CECh. 2 - Prob. 65CECh. 2 - Prob. 66CECh. 2 - Prob. 67CECh. 2 - Prob. 68CECh. 2 - Prob. 69CECh. 2 - Prob. 70CECh. 2 - Prob. 71CECh. 2 - Prob. 72CECh. 2 - Prob. 73CECh. 2 - Prob. 74CECh. 2 - Prob. 75CECh. 2 - Prob. 76CECh. 2 - Prob. 77CECh. 2 - Prob. 78CE
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