Do all of the data points lie on the regression line or are there errors?
A. |
B. |
Which of the following are subjectively set by the researcher in the planning stage of a study when determining sample size? Select all that apply.
a. Level of significance
b. Size of the effect for which she would like to detect significance
c. The sample mean and sample standard deviation
d. Power (probability that she would like to have of rejecting an incorrect null hypothesis)