A statistical procedure used to test hypotheses concerning the mean of interval or ratio data in a single population with an unknown variance is called ______.

Part of the section on metamemory examined how students regulate their study strategies. If you are typical of the college students discussed in that section—and the task is relatively easy—you would be likely to

a. spend somewhat more time on the more difficult material, but not as much time as it deserves. b. fail to review the material you already know. c. show no relationship between study time and the difficulty of the material. d. spend roughly three times as long on difficult topics as on the topics you already know.

Because the pituitary gland regulates other endocrine glands, it is also called the

A) primary gland. B) secondary gland. C) master gland. D) chief gland.