TABLE 10-6 To Investigate the Efficacy of a Diet, a Random Sample

question 85

Short Answer

TABLE 10-6
To investigate the efficacy of a diet, a random sample of 16 male patients is selected from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow-up 4 weeks later. Assuming that the population of differences in weight before versus after the diet follow a normal distribution, the t test for related samples can be used to determine if there was a significant decrease in the mean weight during this period. Suppose the mean decrease in weights over all 16 subjects in the study is 3.0 pounds with the standard deviation of differences computed as 6.0 pounds.
-Referring to Table 10-6, what is the 95% confidence interval estimate for the mean difference in weight before and after the diet?

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Definitions:

Patient Communication

The exchange of information between healthcare providers and patients to promote better health outcomes.

Authority Statements

Declarations or proclamations made by someone in a position of power or expertise, often used to guide or influence others.

Doctor Ordered

A directive given by a physician regarding a patient's treatment plan or medical care.

Interview Situation

An event in which a person is asked questions in a formal or informal setting, often used in research, clinical assessments, or employment processes.