Myers–Briggs: Judges In a random sample of 519 judges, it was found that 285 were introverts. (See reference in Problem 13.)

(a) Let p represent the proportion of all judges who are introverts. Find a point estimate for p.

(b) Find a 99% confidence interval for p. Give a brief interpretation of the meaning of the confidence interval you have found.

(c) Check Requirements Do you think the conditions np . 5 and nq . 5 are satisfied in this problem?

Explain why this would be an important consideration.

AppendixLO1