Test Hypotheses Regarding Two Population Standard Deviations
-An Algebra Teacher $\alpha = 0.01$

question 15

Short Answer

Test Hypotheses Regarding Two Population Standard Deviations
-An algebra teacher believes that the variances of test scores of students in her evening algebra class are lower than the variances of test scores of students in her morning class. The results of an exam, given to the morning and evening students, are shown below. Can the teacher conclude that her evening students have a lower variance? Use $\alpha = 0.01$ .


Assume the samples were randomly selected from normal populations.

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Sexual Arousal

The physiological and emotional response of the human body to sexual stimuli, which includes physical and psychological changes.

Bisexual Attraction

A sexual orientation characterized by the ability to experience sexual, emotional, or romantic attraction to people of both one's own and other genders.

Erotic Plasticity

The degree to which an individual's sex drive and erotic responses can be shaped by cultural, social, and situational factors.

Origins of Sexual Orientation

The factors contributing to a person's emotional, romantic, or sexual attraction to individuals of the same sex, opposite sex, or both.