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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Definitions:

Urethral Meatus

The external opening of the urethra, through which urine exits the body in both males and females, and also serves as the conduit for semen in males.

Paraurethral Glands

Glands located near the urethra that secrete fluid and are involved in female ejaculation.

Ovarian Atrophy

The shrinking or reduction in size and function of the ovaries, often associated with aging or certain medical conditions.

Uterine Atrophy

Uterine atrophy involves the shrinkage or thinning of the uterus, often occurring after menopause due to decreased estrogen levels.