Question

on a HW assignment the mean score was 85% with a stqndard deviation of 4. What are the raw score for each of the following z scores? -0.7

Answer 1

The formula for z-score is given by:

From the above formula, the raw-score for a given z-score is given by:

.............................(1)

Now, the mean score() = 85

and the standard deviation() = 4

The given z-score is -0.7.

Thus, the raw score corresponding to the given z-score is given by:

Raw score = 85 + (-0.7)*4 = 85 - 2.8 = 82.2 [ANSWER] (Using equation (1))

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