If the statewide re-arrest rate for drinking and driving is 40% and we predict that recipients of a new intervention to prevent recidivism will have a 10% recidivism rate, then:
a. the mean of the theoretical sampling distribution of the null hypothesis will be 40%.
b. the mean of the theoretical sampling distribution of the research hypothesis will be 10%.
c. the mean of the theoretical sampling distribution of the research hypothesis will be 30%.
d. the mean of the theoretical sampling distribution of the null hypothesis will be 30%.
C
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The technique used by the Children's Aid Society to get homeless children off the streets involved:
a) Taking children off the streets and placing them with different families in urban areas. b) Gathering homeless children and placing them in poorhouses. c) Gathering homeless children off the streets and placing them with rural farm families. d) Taking children off the street and sending them to vocational schools in rural areas.
Suppose a sample of statistics students (N = 30) has a distribution of grades with a mean of 70 and standard deviation of 15. What is the standard error of the mean?
What will be an ideal response?
In the 1960s, about one in ______ Americans was poor
A. three B. four C. five D. six
In the context of spouse abuse, it has been found that husbands are slapped or shoved by their spouses with about the same frequency as are wives
Indicate whether the statement is true or false