A set of n = 10 pairs of scores has ?X = 20, ?Y = 30, and ?XY = 74. What is the value of SP for these data?
A) 74?
B) ?24
C) ?14
D) ?-14
C
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Callie has gathered extensive data regarding the working conditions and stress levels of domestic workers in five U.S. cities, including their annual income. She arranges the data from low to high and notes how many workers are in each category using a bar chart. This is called a ____
a. standard deviation b. frequency distribution c. normal distribution d. median
Treatment for college students with drinking problems is
a. completely unsuccessful. b. relatively unsuccessful. c. relatively successful. d. completely successful.
If a study showed that a particular treatment produced an improvement in 55% of the participants, while 52% of the control participants improved spontaneously, the treatment
a. Would undoubtedly be statistically significant b. Would lack clinical significance c. Would have clinical significance, but not statistical significance d. Is worth adopting.
The external genitalia of females—the clitoris, labia minora, vestibule, and labia majora—begin to develop by the ____
a. 4th week c. 8th week b. 6th week d. 10th week