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The verbal subtest of the Graduate Record Examination (GRE) has a population mean of 500 and a population standard deviation of 100 by design (the quantitative subtest has the same mean and standard deviation).

a. Convert the following z scores to raw scores without using a formula:

(i) 1.5,

(ii) −0.5,

(iii) −2.0

b. Now convert the same z scores to raw scores using symbolic not ation and the formula:

(i) 1.5,

(ii) −0.5,

(iii) −2.0

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