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Survey Refusals. In Exercise, refer to the | Ch 4.3 - 31BSC

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 31BSC Chapter 4.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 31BSC

Problem 31BSC

 

Survey Refusals. In Exercise, refer to the following table summarizing results from a study of people who refused to answer survey questions (based on data from“I Hear You Knocking but You Can’t Come In,” by Fitzgerald and Fuller, Sociological Methods and Research, Vol. 11, No. 1). In each case, assume that one of the subjects is randomly selected.

Age

 

18–21

22–29

30–39

40–49

50–59

60 and over

Responded

73

255

245

136

138

202

Refused

11

20

33

16

27

49

Survey Refusals A market researcher is interested in responses, especially from those between the ages of 22 and 39, because they are the people more likely to make purchases. Find the probability that a selected subject responds or is between the ages of 22 and 39.

Step-by-Step Solution:
Step 1 of 3

Solution  31BSC

= 0.915

Step 2 of 3

Chapter 4.3, Problem 31BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Survey Refusals. In Exercise, refer to the | Ch 4.3 - 31BSC