A Sample of N = 16 Individuals Is Selected from a Population

question 47

Essay

A sample of n = 16 individuals is selected from a population with µ = 30.After a treatment is administered to the individuals,the sample mean is found to be M = 33.
a.Assume the sample variance is s² = 16, then conduct a hypothesis test to evaluate the
significance of the treatment effect and calculate r² to measure the size of the
treatment effect.Use a two-tailed test with α = .05.
b.Assume the sample variance is s² = 64, then conduct a hypothesis test to evaluate the
significance of the treatment effect and calculate r² to measure the size of the
treatment effect.Use a two-tailed test with α = .05.
c.Describe how increasing variance affects the likelihood of rejecting the
null hypothesis and the measure of effect size.

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Definitions:

Thick Filament

A component of muscle fiber primarily made of myosin, responsible for muscle contraction.

Myosin

A type of motor protein found in muscle cells and other cell types, essential for muscle contraction and movement within cells.

Sarcomere

The basic unit of muscle fiber responsible for muscle contraction, consisting of actin and myosin filaments.

Muscle Contraction

The process by which muscle fibers generate force and shorten or lengthen to produce movement.