Essentials Of Statistics
4th Edition
ISBN: 9781305093836
Author: HEALEY, Joseph F.
Publisher: Cengage Learning,
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Textbook Question
Chapter 3, Problem 3.13P
SOC A sample of 25 freshmen at a major university completed a survey that measured their degree of racial prejudice (the higher the score, the greater the prejudice).
a. Compute the
| 10 | 43 | 30 | 30 | 45 |
| 40 | 12 | 40 | 42 | 35 |
| 45 | 25 | 10 | 33 | 50 |
| 42 | 32 | 38 | 11 | 47 |
| 22 | 26 | 37 | 38 | 10 |
b. These same 25 students completed the same survey during their senior year. Compute the median and mean for this second set of scores, and compare them to the earlier set. What happened?
| 10 | 45 | 35 | 27 | 50 |
| 35 | 10 | 50 | 40 | 30 |
| 40 | 10 | 10 | 37 | 10 |
| 40 | 15 | 30 | 20 | 43 |
| 23 | 25 | 30 | 40 | 10 |
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In a company with 80 employees, 60 earn $10.00 per hour and 20 earn $13.00 per
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Is this average hourly wage considered representative?
The following is a list of questions answered correctly on an exam. Calculate the
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NUMBER OF QUESTIONS ANSWERED CORRECTLY ON AN APTITUDE EXAM
112
72
69
97
107
73
92
76
86
73
126
128
118
127
124
82
104
132
134
83
92
108
96
100
92
115
76
91
102
81
95
141
81
80
106
84
119
113
98
75
68
98
115
106
95
100
85
94
106
119
The following ordered data list shows the data speeds for cell phones used by a
telephone company at an airport:
A. Calculate the Measures of Central Tendency using the table in point B.
B. Are there differences in the measurements obtained in A and C? Why (give at
least one justified reason)?
0.8
1.4
1.8
1.9
3.2
3.6
4.5
4.5
4.6
6.2
6.5
7.7
7.9
9.9
10.2
10.3
10.9
11.1
11.1
11.6
11.8
12.0
13.1
13.5
13.7
14.1
14.2
14.7
15.0
15.1
15.5
15.8
16.0
17.5
18.2
20.2
21.1
21.5
22.2
22.4
23.1
24.5
25.7
28.5
34.6
38.5
43.0
55.6
71.3
77.8
Chapter 3 Solutions
Essentials Of Statistics
Ch. 3 - SOCA variety of information has been gathered from...Ch. 3 - A variety of information has been collected for...Ch. 3 - You have been observing the local Democratic Party...Ch. 3 - The following table presents the annual...Ch. 3 - SOC Data have been gathered on four variables for...Ch. 3 - SOC The following tables list the median family...Ch. 3 - Find the appropriate measure of central tendency...Ch. 3 - SOC The accompanying table gives scores on four...Ch. 3 - SOC The college administration is considering a...Ch. 3 - SOC As the head of a social services agency, you...
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