For a sample of raw scores, you calculate a mean of 15.25 and a standard deviation of 3.19. What is the z-score for a raw score of 11?
A) 1.09
B) 1.33
C) -.51
D) -1.33

Name: For a sample of raw scores, you calculate a mean of 15.25 and a standard deviation of 3.19. What is the z-score for a raw score of 11? A) 1.09 B) 1.33 C) -.51 D) -1.33
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Z-score formula: z = (x - mean) / standard deviation

Plugging in the values:

z = (11 - 15.25) / 3.19
z = -1.33

Therefore, the answer is D.

For a Sample of Raw Scores, You Calculate a Mean