Choose the correct statement:
a. if the null hypothesis is true, there is no difference between population means.
b. if the null hypothesis is false, the samples are considered the same.
c. if the null hypothesis is true, there is a difference between population means.
d. u1 will never be equal to u2
a. if the null hypothesis is true, there is no difference between population means.
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According to Davis and Moore, a system of unequal rewards increases productivity by
a. provoking revolutionary change. b. motivating people to work longer, harder, or better. c. encouraging people to work only according to their own perceived abilities. d. ensuring highly paid individuals contribute substantially to society.
According to the United Nations, absolute poverty is defined as a situation in which people live on less than ____ a day
a. $1 b. $5 c. $10 d. $20
When did health insurance start as a fringe benefit associated with employment?
a. immediately after the Civil War b. in the 1960s under President Kennedy c. in the 1920s during the Progressive Era d. during World War II
An invisible barrier that blocks the promotion of a woman in the military because of her official exclusion from combat is known as a
A. brass ceiling. B. gold ceiling. C. glass ceiling. D. camouflage ceiling.