In a random sample of 68 professional actors, it was found that 37 were extroverts. (a) (b) [ USE SA Let p represent the proportion of all actors who are extroverts. Find a point estimate for p. (Round your answer to four decimal places.) X Find a 95% confidence interval for p. (Enter your answer in the form: lower limit to upper limit. Include the word "to." Round your numerical values to two decimal places.) X The interval should have only two values