Thirty-Five Employees Who Completed Two Years of Tertiary Education Were

question 40

Essay

Thirty-five employees who completed two years of tertiary education were asked to take a basic mathematics test. The mean and standard deviation of their marks were 75.1 and 12.8, respectively. In a random sample of 50 employees who only completed high school, the mean and standard deviation of the test marks were 72.1 and 14.6, respectively. Can we infer at the 10% significance level that a difference exists between the two groups?

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Definitions:

Olfactory Hallucinations

Sensory hallucinations involving the perception of smells that are not present in the environment.

Auditory Hallucinations

The experience of hearing sounds or voices that are not present in the external environment.

Visual Hallucinations

Hallucinations in which a person may either experience vague visual perceptions, perhaps of colors or clouds, or have distinct visions of people, objects, or scenes that are not there.

Tourette's Syndrome

A neurological disorder characterized by repetitive, stereotyped, involuntary movements and vocalizations called tics.