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

question 85

True/False

Instruction 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 kilograms with the standard deviation of differences computed as 6.0 kilograms.
-Referring to Instruction 10-8,the null hypothesis should be rejected.

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Definitions:

Internal Locus

refers to the belief that one controls their own life events and outcomes, as opposed to external forces determining them.

Self-esteem

is the perception of one’s own worth or value, significantly influencing an individual's motivation, behavior, and emotions.

Self-esteem

Self-esteem is the perception and evaluation of one's own worth, encompassing beliefs and emotions about oneself.

Agreeableness

A personality trait that involves being kind, cooperative, and sympathetic towards others, a component of the Five Factor Model of personality.