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

question 122

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 t test should be ____-tailed.

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Definitions:

Background Check

The process of investigating an individual's history, typically conducted for employment or security purposes to verify credentials and identify any legal issues.

Group Interview

An interview process involving multiple candidates being interviewed simultaneously, often used to assess communication and interpersonal skills in a collaborative setting.

Structured Interview

A formalized, consistent interview process where all candidates are asked the same predetermined set of questions.

Behavioural Interview

A method of interviewing where candidates are asked to describe past behavior as a predictor of future performance.