TABLE 10-7 To Investigate the Efficacy of a Diet, a Random Sample

question 89

Short Answer

TABLE 10-7
To investigate the efficacy of a diet, a random sample of 16 male patients is drawn 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 10-7, the p-value for a two-tail is greater than ________ but less than ________.

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Definitions:

Nutrients

Substances obtained from food that are essential for the maintenance of health and for growth and development.

Waist-To-Hip Ratios

A measurement used to assess the distribution of body fat, calculated by dividing the circumference of the waist by the circumference of the hips.

Obesity-Related

Pertains to conditions or health concerns associated with or caused by excessive body weight.

Increased Risk

A higher probability of experiencing a certain condition or event compared to normal circumstances.