Business Analytics (2nd Edition)
2nd Edition
ISBN: 9780321997821
Author: James R. Evans
Publisher: PEARSON
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Chapter 1, Problem 15PE
A manufacturer of mp3 players is preparing to set the price on a new model. Demand is thought to depend on the price and is represented by the model
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Students have asked these similar questions
14
A survey is conducted to determine whether
would prefer to work at home, if given the
20 office employees of a certain company
chance. The overall results are shown in the
first bar graph, and the results broken down
by gender are presented in the second.
a. Interpret the results of each graph.
b. Discuss the added value in including gen-
der in the second bar graph. (The second
bar graph in this problem is called a side
by side bar graph and is often used to
show results broken down by two or more
variables.)
c. Compare the side by side bar graph with
the two pie charts that you made for
Question 6. Which of the two methods is
best for comparing two groups, in your
opinion?
A
Would you prefer to work at home? (n=20)
60
50
40
Percent
20
30
20
30
10
0
No
Yes
Prefer to work at home? (10 males, 10 females)
80
Percent
60
00
40
40
20-
No
Yes
No
Yes
Female
Male
Frequency
12
Suppose that a random sample of 270 gradu-
ating seniors are asked what their immediate
priorities are, including whether buying a
house is a priority. The results are shown in
the following bar graph.
a. The bar graph is misleading; explain why.
b. Make a new bar graph that more fairly
presents the results.
Is Buying a House a Priority?
300
250
200
150
100
50
0
Yes
No
Undecided
Frequency
11
A polling organization wants to find out
what voters think of Issue X. It chooses a
random sample of voters and asks them
for their opinions of Issue X: yes, no, or
no opinion. I organize the results in the
following bar graph.
a. Make a frequency table of these results
(including the total number).
brocb. Evaluate the bar graph as to whether it
biz s b fairly represents the results.
of beau no
STORE TO OW! vd wob spind
550
540
500
vd
480
420
360
300
250
240
Yes
No
Undecided
Opinion on Issue X
Chapter 1 Solutions
Business Analytics (2nd Edition)
Ch. 1 - Discuss how you might use business analytics in...Ch. 1 - A supermarket has been experiencing long lines...Ch. 1 - Suggest some metrics that a hotel might want to...Ch. 1 - Prob. 4PECh. 1 - Classify each of the data elements in the Sales...Ch. 1 - Identify each of the variables in the Excel file...Ch. 1 - Classify each of the varaibles in the Excel file...Ch. 1 - A survey handed out to individuals at a major...Ch. 1 - A bank developed a model for predicting the...Ch. 1 - Four key marketing decision variables are price...
Ch. 1 - Suppose that a manufacturer can produce a part for...Ch. 1 - Return on investment (ROl) is computed in the...Ch. 1 - Total marketing effort is a term used to describe...Ch. 1 - Automobiles have different fuel economies (mpg),...Ch. 1 - A manufacturer of mp3 players is preparing to set...Ch. 1 - The demand for airline travel is quite sensitive...
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