For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a random sample of 65 professional actors, it was found that 39 were...

(a) Let
p
represent the proportion of all actors who are extroverts. Find a point estimate for
p. (Round your answer to four decimal places.)




(b) Find a 95% confidence interval for
p. (Round your answers to two decimal places.)

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upper limit