When a standard deviation is calculated from sample data, the denominator in the formula SHOULD be ______.
A. the sum of all values of Y
B. the mean of Y
C. N
D. N ? 1
D. N ? 1
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Matching participants on the variable of gender is relatively simple because
A) gender of participants has only two levels. B) gender is a continuous variable. C) many studies use gender as a variable. D) determining gender is a relatively straightforward procedure.
Devolution is the process of giving the states more responsibility for public programs
Indicate whether the statement is true or false.
Comparative researchers use several types of data and combine types together in one study. Name four data/research types
What will be an ideal response?
The Social Security tax is arguably an example of a regressive tax because ______.
a. people pay taxes on only the first $128,400 of their incomes b. only the wealthy qualify for Social Security c. today’s youth are unlikely to receive Social Security d. the elderly are taxed at higher rates than the young e. everyone is taxed at the same rate regardless of income