You do a t test for dependent means in exactly the same way as a t test for a single sample, except that you use something called:
A) the mean variance
B) variance of the dependent means
C) difference scores
D) independent t scores
C
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In large complex societies, decisions are made by a few people, but in a democracy it is necessary that these few be representatives of the masses and therefore subject to their influence
a. true b. false
What evidence is there that midlife crises do or do not exist?
ANSWER:
A scaled-back society is more in line with the view of pessimistic environmentalists
Indicate whether the statement is true or false
In the preindustrial stage of technological development, population ________
a. increases very slowly, with a high birth rate offset by a high death rate. b. increases rapidly due mostly to natural increase. c. increases rapidly due entirely to immigration. d. decreases very rapidly.