The comparison distribution for a t test for independent means is a t distribution because
A) tables are not available for the normal curve.
B) the population variance is estimated.
C) Z distributions were not available at the time the t test for independent means was developed.
D) there are more degrees of freedom for a single sample than for two samples.
Answer: B
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The depression of the survivors was linked primarily to the fact that
a. they no longer had to work hard to maintain community. b. their success as individuals was destroyed. c. their taken-for-granted community was no more. d. they were placed into a foreign structure that they found too limiting.
According to C. Wright Mills, the power elite is composed of leaders of three sectors, the most powerful of which are________
a. the president and his advisors b. the U.S. Senate c. the corporate rich d. local opinion leaders
A review of family size effects showed that in large families,
A) child rearing was more rule driven. B) corporal punishment was more prevalent. C) more delinquents and alcoholics were produced. D) all the above three were found.
The concept of adolescence was socially created to describe the first six years of a child's life. True or False?
Indicate whether the statement is true or false