A researcher who is evaluating the significance of a multiple regression equation with two predictor variables obtains an F-ratio with df = 2, 24. How many individuals were needed to produce the sample data used to find the regression equation?
A) 24
B) 25
C) 26
D) 27
Question 2
A researcher administers a treatment to a sample of participants selected from a population with = 80. If the researcher obtains a sample mean of M = 88, given the same alpha level, which combination of factors is most likely to result in rejecting the null hypothesis?
A) = 5 and n = 25
B) = 5 and n = 50
C) = 10 and n = 25
D) = 10 and n = 50
A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
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