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Chapter 4: 116-Exercise (page 283)

Unequal benefitsResearchers on aging proposed investigating the effect of

supplemental health services on the quality of life of older people. Eligible patients on

The rolls of a large medical clinic were to be randomly assigned to treatment and control.

groups. The treatment group would be offered hearing aids, dentures, transportation, and other services not available without charge to the control group. The review board believed that providing these services to some but not other people in the same institution raised ethical questions. Do you agree?

Short Answer

Expert verified

Yes, I agree that the review board believed that providing these services to some but not other people in the same institution raised ethical questions.

Step by step solution

01

Step 1:Given:Researchers on aging proposed investigating the effect ofsupplemental health services on the quality of life of older people. Eligible patients onThe patients of a large medical clinic were to be randomly assigned to treatment and control.groups. The treatment group would be offered hearing aids, dentures, transportation, and other services not available without charge to the control group. The review board believed that providing these services to some but not other people in the same institution raised an ethical question.

I have to clarify this statement.

02

Given:A statement is given above.

No, I strongly disagree that only aged people should get the benefit of the services. It may be possible that services are required for those people who are not aged. This situation may lead to unethical conditions.

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Most popular questions from this chapter

Close shave Which of two brands (XorY)of electric razor shaves closer? Researchers

want to design and carry out an experiment to answer this question using 50adult male

volunteers. Here’s one idea: Have all 50subjects shave the left sides of their faces with the

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each man decide which razor gave the closer shave and compile the results.

a. Identify any flaws you see in the proposed design for this experiment.

b. Describe how you would design the experiment. Explain how your design addresses

each of the problems you identified in part (a).

Reducing unemployment Will cash bonuses speed the return to work of unemployed people? A state department of labor notes that last year 68%of people who filed claims for unemployment insurance found a new job within 15weeks. As an experiment, this year the state offers $500to people filing unemployment claims if they find a job within 15weeks. The percent who do so increases to 77%. What flaw in the design of this experiment makes it impossible to say if the bonus really caused the increase? Explain your answer.

A simple random sample of 1200 adult Americans is selected, and each person is asked

the following question: “In light of the huge national deficit, should the government at this

time spend additional money to send humans to Mars?” Only 39% of those responding

answered “Yes.” This survey

a. is reasonably accurate because it used a large simple random sample.

b. needs to be larger because only about 24 people were drawn from each state.

c. probably understates the percent of people who favor sending humans to Mars.

d. is very inaccurate but neither understates nor overstates the percent of people who favor

sending humans to Mars. Because simple random sampling was used, it is unbiased.

e. probably overstates the percent of people who favor sending humans to Mars.

When we take a census, we attempt to collect data from

a. a stratified random sample.

b. every individual chosen in a simple random sample.

c. every individual in the population.

d. a voluntary response sample.

e. a convenience sample.

Dead trees On the west side of Rocky Mountain National Park, many mature pine trees are dying due to infestation by pine beetles. Scientists would like to use sampling to estimate the proportion of all pine trees in this area that have been infested.

a. Explain why it wouldn’t be practical for scientists to obtain an SRS in this setting.

b. A possible alternative would be to use every pine tree along the park’s main road as a sample. Why is this sampling method biased?

c. Suppose that a more complicated random sampling plan is carried out, and that 35% of the pine trees in the sample are infested by the pine beetle. Can scientists conclude that exactly 35% of all the pine trees on the west side of the park are infested? Why or why not?
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