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Statistics for Business and Economics | 12th Edition | ISBN: 9780321826237 | Authors: James T. McClave, P. George Benson, Terry T Sincich
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Solved: Going online for health information. A

Chapter 3, Problem 13E

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QUESTION:

Going online for health information. A cyberchondriac is defined as a person who regularly searches the Web for health care information (see Exercise 1.20, p. 26). A 2011 Harris Poll surveyed 1,019 U.S. adults by telephone and asked each respondent how often (in the past month) he/she looked for health care information online. The results are summarized in the following table. Consider the response category of a randomly selected person who participated in the Harris Poll.

a. List the sample points for the experiment.

b. Assign reasonable probabilities to the sample points.

c. Find the probability that the respondent looks for health care information online more than two times per month.

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QUESTION:

Going online for health information. A cyberchondriac is defined as a person who regularly searches the Web for health care information (see Exercise 1.20, p. 26). A 2011 Harris Poll surveyed 1,019 U.S. adults by telephone and asked each respondent how often (in the past month) he/she looked for health care information online. The results are summarized in the following table. Consider the response category of a randomly selected person who participated in the Harris Poll.

a. List the sample points for the experiment.

b. Assign reasonable probabilities to the sample points.

c. Find the probability that the respondent looks for health care information online more than two times per month.

ANSWER:

Solution:

Step 1 of 4:

A 2011 Harris Poll surveyed 1,019 U.S. adults by telephone and asked each respondent how often he/she looked for healthcare information online.

The results are in the following table:

Responses (# person)

Percentage of respondents

None

19

1 or 2

31

3 - 5

26

6 - 9

5

10 or more

19

Total

100

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