Which of the following measures represents the "noise" component in the t test?
a. the population variance
b. the population standard deviation
c. the unbiased estimator of the population variance
d. the unbiased estimator of the population standard deviation
c
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What is one likely explanation for why cats and bats evolved a tendency to sleep many hours?
a. They have little risk of being attacked during their sleep. b. They are less physically active during the day than other species. c. They eat diets that are relatively low in calories. d. They have smaller brains, compared to other species of similar size.
Hormone Replacement Therapy is currently the only FDA approved medication that helps to relieve symptoms of menopause
Indicate whether the statement is true or false
Which of the following statements is true in the context of hospices?
A) Hospices focus on treating diseases and disabilities of patients. B) Hospice care tends to be less expensive than hospital treatment. C) Hospices offer little control to patients and their families with respect to decision making. D) Hospice care emphasizes length rather than quality of patients' life.
Kirkland et al. (1999 ) found that ________ of people with high cholesterol were aware of it
a) four-fifths b) two-thirds c) one-half d) one-third