SCENARIO 10-6 to Investigate the Efficacy of a Diet,a Random Sample of Sample

question 85

Short Answer

SCENARIO 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 Scenario 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:

Job Characteristics Model

A framework that proposes that five core job dimensions lead to critical psychological states, affecting motivation, job satisfaction, and job performance.

Growth Need Strength

The extent to which people desire to achieve higher-order need satisfaction by performing their jobs.

Core Job Characteristic

Fundamental attributes that affect an individual's work motivation, satisfaction, and performance, such as skill variety, task identity, and autonomy.

Hackman And Oldham

A theory proposed by Richard Hackman and Greg Oldham that suggests job design can influence employee motivation, satisfaction, and performance through five core job dimensions.