A Medical Researcher Suspects That the Variance of the Pulse $\alpha = 0.05 .$

question 1

Essay

A medical researcher suspects that the variance of the pulse rate of drinkers is higher than the variance of the pulse rate of non-drinkers. Use the sample statistics below to test the researcher's suspicion. Use $\alpha = 0.05 .$
Drinkers
Non-drinkers
$n _ { 1 } = 61$
$n _ { 2 } = 121$
$\mathrm { s } _ { 1 } = 5.46$
$s _ { 2 } = 3.71$ Assume the samples were randomly selected from normal populations.

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Definitions:

Goal Attainment

The process of setting, pursuing, and achieving objectives, often used as a measure of success or progress.

Intergroup Bias

The tendency to favor one's own group over other groups in judgment or treatment.

Self-Esteem

The degree to which a person has a positive self-evaluation.

Locus of Control

A psychological concept referring to an individual's belief about the extent of control they have over events in their lives, which can be internal (believing they have control) or external (believing that outside forces have control).