Construct a table that represents the frequency of respondent in each of the six cells.

Question

Consider a cohort study to compare the mortality rate of myocardial infarction (MI) in men with sedentary work (exposed group) to men with physically active work (unexposed). If in the exposed, there were 36,000 person (man) years of observation and 126 deaths whereas the unexposed had 24,000 man-years of observation and 44 deaths. Compute the following a) Mortality rate in each cohort? b) What is the relative risk of dying, comparing these 2 groups? c) What is the attributable risk of sedentary work? d) What is the attributable benefit of physical activity? e) If we assume that MI is associated with the mortality in this cohort (causality), what proportion of the disease in the higher group is potentially preventable?

Answer 1

Question

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

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Consider a cohort study to compare the mortality rate of myocardial infarction (MI) in men with sedentary work (exposed group) to men with physically active work (unexposed). If in the exposed, there were 36,000 person (man) years of observation and 126 deaths whereas the unexposed had 24,000 man-years of observation and 44 deaths. Compute the following a) Mortality rate in each cohort? b) What is the relative risk of dying, comparing these 2 groups? c) What is the attributable risk of sedentary work? d) What is the attributable benefit of physical activity? e) If we assume that MI is associated with the mortality in this cohort (causality), what proportion of the disease in the higher group is potentially preventable?

An automotive engineer is investigating two different types of metering devices for an electronic fuel injection system to determine whether they differ in their fuel mileage performance. The system is installed on 10 different cars, and a test is run with each metering device on each car. The data is provided below: Metering Device Car 1 2 1 17.6 16.8 2 19.4 20.0 3 18.2 17.6 4 17.1 16.4 5 15.3 16.0 6 15.9 15.9 7 16.3 16.5 8 18.0 18.4 9 17.3 16.4 10 19.1 20.1 Is there a significant difference between the means of the two metering devices? Use . Interpret the result in the context of the problem. An article in the journal Hazardous Waste and Hazardous Materials (Vol. 6, 1989) reported the results of an analysis of the weight of calcium in standard cement and cement doped with lead. Reduced levels of calcium would indicate that the hydration mechanism in the cement is blocked…

In the book Business Research Methods (5th ed.), Donald R. Cooper and C. William Emory discuss studying the relationship between on-the-job accidents and smoking. Cooper and Emory describe the study as follows: Suppose a manager implementing a smoke-free workplace policy is interested in whether smoking affects worker accidents. Since the company has complete reports of on-the-job accidents, she draws a sample of names of workers who were involved in accidents during the last year. A similar sample from among workers who had no reported accidents in the last year is drawn. She interviews members of both groups to determine if they are smokers or not. The sample results are given in the following table. On-the-Job Accident Smoker Yes No Row Total Heavy 12 5 17 Moderate 9 10 19 Nonsmoker 13 17 30 Column total 34 32 66 Expected counts are below observed counts Accident No Accident Total Heavy 12 5 17 8.76 8.24…

Answer 2

Question

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

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Answer 3

Question

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

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Answer 4

Question

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

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Answer 5

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

Answer 6

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

Answer 7

Chapter 6.6, Problem 81E

a.

To determine

Construct a table that represents the frequency of respondent in each of the six cells.

Answer 8

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

Answer 9

b.

To determine

Construct a table that probabilities of respondent in each of the six cells.

Answer 10

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

Answer 11

c.

To determine

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

Answer 12

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Construct a table that represents the frequency of respondent in each of the six cells.

Solution Summary: The author explains how to construct a table that represents the frequency of respondent in each of the six cells.

Construct a table that represents the frequency of respondent in each of the six cells.

Construct a table that probabilities of respondent in each of the six cells.

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.

Chapter 6 Solutions

Construct a table that represents the frequency of respondent in each of the six cells.

Solution Summary: The author explains how to construct a table that represents the frequency of respondent in each of the six cells.

Construct a table that represents the frequency of respondent in each of the six cells.

Construct a table that probabilities of respondent in each of the six cells.

i.) Compute the probability that selected individual has 5 or more years of college. ii.) Calculate the probability that selected individual uses alternative therapies.

Chapter 6 Solutions

i.) Compute the probability that selected individual has 5 or more years of college.

ii.) Calculate the probability that selected individual uses alternative therapies.