The mean equals 30. One individual scores at the 26th percentile and has a raw score of 26. What is the standard deviation?
What will be an ideal response?
Question 2
A regression coefficient indicates
A) whether the correlation is significant or not.
B) how many units of change in the predicted value of the criterion variable for each unit of change in the predictor variable.
C) the accuracy of predictions based on the reduction in squared error as a proportion of the total squared error.
D) the fixed amount that should be added when making a prediction for any particular person.
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