Test Hypotheses Regarding Two Population Standard Deviations
-The Time Spent $\alpha = 0.05$

question 64

Short Answer

Test Hypotheses Regarding Two Population Standard Deviations
-The time spent watching television (per day) of 121 women between the ages of 55 and 64 had a standard deviation of 63 minutes. The time spent watching television (per day) of a random sample of 121 women between the ages of 25 and 34 had a standard deviation of 84 minutes. Test the hypothesis that the older women are from a population with a variance less than that for women in the 25 to 34 age group. Use $\alpha = 0.05$ . Assume the samples were randomly selected from normal populations.

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Definitions:

Unconscious Determinants

Influences on behavior and decisions that occur without conscious awareness, often stemming from hidden or repressed feelings and thoughts.

Purpose of Consciousness

The reason or underlying function of the state of being aware of and responsive to one's surroundings and thoughts.

Scientific Study

The systematic investigation of scientific theories and hypotheses through controlled experiments, observation, and analysis to acquire knowledge and insights.

Unconscious

A part of the mind that is not accessible to conscious thought but that influences judgments, feelings, or behavior.