Maurice Tutor

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 25 Mar 2018 My Price 8.00

Roper Poll

In Exercise 9 of Chapter 12 results were given for a Roper Poll in which people were classified according to age and were asked if they had ever seen a ghost. The results from asking Minitab to compute the chi-square statistic are shown in Figure 13.4. What can you conclude about the relationship between age group and reportedly seeing a ghost?

 

Exercise 9

The Roper Organization (1992) conducted a study as part of a larger survey to ascertain the number of American adults who had experienced phenomena such as seeing a ghost, “feeling as if you left your body,” and seeing a UFO. A representative sample of adults (18 and over) in the continental United States were interviewed in their homes during July, August, and September 1991. The results when respondents were asked about seeing a ghost are shown in Table 12.10.

a. Find numbers for each of the following:

i. The percentage of the younger group who reported seeing a ghost

ii. The proportion of the older group who reported seeing a ghost

iii. The risk of reportedly seeing a ghost in the younger group

iv. The odds of reportedly seeing a ghost to not seeing one in the older group

b. What is the relative risk of reportedly seeing a ghost for one group compared to the other? Write your answer in the form of a sentence that could be understood by someone who knows nothing about statistics.

c. Repeat part b using increased risk instead of relative risk.

Answers

Maurice Tutor
(5)
Status NEW Posted 25 Mar 2018 05:03 AM My Price 8.00

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