Instruction 10-13 to Investigate the Efficacy of a Diet,a Random Sample of Sample

question 132

Short Answer

Instruction 10-13
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 10-13,a one-tailed test of the null hypothesis of no difference would ________ (be rejected/not be rejected)at the α = 0.05 level of significance.

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Definitions:

Acetylcholine

A neurotransmitter important for learning, memory, and muscle movement.

Enzyme

A biological molecule that acts as a catalyst, speeding up chemical reactions in the body without being consumed or altered in the process.

Body Fluids

Liquids originating from inside the bodies of living organisms, which include blood, saliva, semen, and sweat, among others.

Central Nervous System

The primary information processing center of the body, consisting of the brain and spinal cord, responsible for processing and sending out signals.