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

question 103

Essay

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, the p-value for a two-tail is ________.

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Definitions:

Internal-External Scale

A psychological measure indicating the extent to which individuals attribute their successes or failures to internal factors (their own efforts) or to external factors (such as luck).

Nowicki-Strickland

A psychological assessment tool used to measure an individual's perceived locus of control.

Locus of Control

A psychological concept that refers to how strongly people believe they have control over the situations and experiences that affect their lives.

Locus of Control

A mental principle suggesting the level of conviction individuals possess regarding their ability to influence the circumstances and events impacting their existence.