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

question 146

Short Answer

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 10-7,a one-tailed test of the null hypothesis of no difference would __________ be rejected/not be rejecteat the $\alpha$ = 0.05 level of significance.

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Ethical Principles

The guiding concepts that inform moral judgment and conduct, determining what is right or wrong in various scenarios.

Psychological Research

The scientific study of the mind and behavior through controlled experiments, observation, and analysis.

Psychological Research

The scientific study of the mind and behavior, utilizing systematic methods and empirical evidence to answer questions about psychological functions and processes.

Empirical

Is anchored in, deals with, or can be proven by actual observation or lived experiences as opposed to theoretical ideologies or mere logical reasoning.