赞题库-背景图

单项选择题

A test of a hypothesis that the means of two normally distributed populations are equal based on two independent random samples:

A. is based on a Chi Square statistic.
B. is a paired -comparisons test.
C. is done with a t -statistic.

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热门试题

单项选择题Which of the following random variables would be most likely to follow a discrete uniform distribution

A. The outcome of the roll of two standard, six - sided dice where X is the sum of the numbers facing up.
B. The number of heads on the flip of two coins.
C. The outcome of a roll of a standard, six - sided die where X equals the number facing up on the die.

单项选择题Which of the following statements regarding the speed at which analysts believe stock prices reflect new information is most likely accurate

A. Technicians believe that prices adjust quickly to new information.
B. Both technicians and followers of the efficient market hypothesis believe prices adjust slowly to new information.
C. Followers of the efficient market hypothesis believe prices adjust quickly to new information.