A Teacher Is Interested in Performing a Hypothesis Test to Compare

question 7

Multiple Choice

A teacher is interested in performing a hypothesis test to compare the mean math score of the girls and the mean math score of the boys.She randomly selects 10 girls from the class and then randomly selects 10 boys.She arranges the girls' names alphabetically and uses this list to assign each girl a number between 1 and 10.She does the same thing for the boys.

• A)Paired t-test.Since the boys and girls are in the same class,and are hence dependent samples,they are can be linked.
• B)Either two-sample or paired t-test will work.
• C)1-sample t-test.The teacher should compare the sample mean for the girls against the population mean for the boys.
• D)Two-sample t-test.There is no natural pairing between the two populations.
• E)Paired t-test.Since there are 10 boys and 10 girls,we can link the two samples.

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Definitions:

Androgens

A group of hormones that play a role in male traits and reproductive activity; the principal androgen is testosterone.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.

Secretory Phase

A phase of the menstrual cycle following ovulation where the endometrium prepares for potential implantation of an embryo.

Uterine Cycle

The monthly cycle of changes in the uterus, including menstruation, in preparation for possible pregnancy.