13. Find the mean first = sum of scores/number of scores
Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.
Standard deviation = square root of variance
Z = (score-mean)/SD
13. Insert the Z score and other data to find the raw scores.
I'll let you do the calculations.
Please help me with both of these questions. THANK YOU in advance for your for you help.
13. For the data,
9 5 10 7 9 10 11 8 12 7 6 9
(a) Compute the z-score for the raw score of 10. (b) Compute the z-score for the raw score of 6.
14. For the data in question 13, find find the raw scores that correspond to the following:
(a) z = 11.22; (b) z = -0.48.
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1 answer