______ quantities are required to construct a confidence interval around a sample mean when ? is known.
a. Two
b. Three
c. Four
d. One
Ans: C
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Loss of subjects during the course of a research project usually introduces bias because
a. the resulting sample is too small b. subjects are not lost on a random basis c. descriptive statistics cannot be used on the resulting data d. inferential statistics cannot be used on the resulting data
If a group of soldiers are given orders, who of the following is LEAST likely to follow them?
A. Desmond, who believes the war is justified B. Tom, who is standing a few feet in front of the officer giving orders C. Talia, who has teammates with non-unanimous opinions about the orders D. Lucia, who has followed smaller orders in the past
According to the article Over the Hill about the Betula study of adult cognition, ____ is a correlation falling within the range found for the relationship between age and medical indicators such as urine and blood tests:
(a) -.76 (b) -.43 (c) .60 (d) .82
In applying various models that describe different phases of grief, it is important to recognize that
a. the phases always occur in a linear progression until the process has been completed
b. the phases may overlap, occur in any order, and may be of varying duration
c. such models prove that grief does follow a consistent overall pattern
d. such models are not really helpful in explaining or understanding how humans grieve