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

question 163

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 90% confidence interval estimate for the mean difference in weight before and after the diet?

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Definitions:

Income Statement

A report detailing a corporation's income, costs, and earnings within a given timeframe.

Book Value

The net value of an asset as recorded on the balance sheet, calculated by original cost minus depreciation.

Gain Or Loss

The financial result that occurs when the selling price of an asset differs from its original purchase price, where a higher selling price results in a gain and a lower selling price results in a loss.

Disposal

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