Question: Using the standard normal curve and z: a. Find the minimum score needed to receive an A if the instructor in Example 6.12 (p. 325)

Using the standard normal curve and z:

a. Find the minimum score needed to receive an A if the instructor in Example 6.12 (p. 325)

said the top 15% were to get As.

b. Find the 25th percentile for IQ scores in Example 6.10 (p. 324).

c. If 20% of the salaries in Example 6.14 (p. 326)

are below $28,000, find the current mean salary.

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