1our algits after the decimal in your calculations. Answers may vary slightly due to rounding. na random sample of 66 professional actors, it was found that 36 were extroverts. n USE SALT a) Let p represent the proportion of all actors who are extroverts. Find point estimates for p and q. (Round your answer to four p = = (b) Find a 95% confidence interval for p. Find the maximal margin of error. (Round your answer to two decimal places.) E =

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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 66 professional actors, it was found that 36 were extroverts.
A USE SALT
(a) Let p represent the proportion of all actors who are extroverts. Find point estimates for p and g. (Round your answer to four decimal
a =
(b)
Find a 95% confidence interval for p.
Find the maximal margin of error. (Round your answer to two decimal places.)
Report the bounds from the 95% confidence interval for p. (Round your answers to two decimal places.)
lower limit
upper limit
Give a brief interpretation of the meaning of the confidence interval you have found.
O We are 5% confident that the true proportion of actors who are extroverts falls within this interval.
O We are 5% confident that the true proportion of actors who are extroverts falls above this interval.
O We are 95% confident that the true proportion of actors who are extroverts falls outside this interval.
We are 95% confident that the true proportion of actors who are extroverts falls within this interval.
(c)
Do you think the conditions np > 5 and ng > 5 are satisfied in this problem? Explain why this would be an important consideration.
Yes, the conditions are satisfied. This is important because it allows us to say that p is approximately normal.
onditions are satisfied. This is important because it allows us to say that p is approximately binomial.
Transcribed Image Text: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 66 professional actors, it was found that 36 were extroverts. A USE SALT (a) Let p represent the proportion of all actors who are extroverts. Find point estimates for p and g. (Round your answer to four decimal a = (b) Find a 95% confidence interval for p. Find the maximal margin of error. (Round your answer to two decimal places.) Report the bounds from the 95% confidence interval for p. (Round your answers to two decimal places.) lower limit upper limit Give a brief interpretation of the meaning of the confidence interval you have found. O We are 5% confident that the true proportion of actors who are extroverts falls within this interval. O We are 5% confident that the true proportion of actors who are extroverts falls above this interval. O We are 95% confident that the true proportion of actors who are extroverts falls outside this interval. We are 95% confident that the true proportion of actors who are extroverts falls within this interval. (c) Do you think the conditions np > 5 and ng > 5 are satisfied in this problem? Explain why this would be an important consideration. Yes, the conditions are satisfied. This is important because it allows us to say that p is approximately normal. onditions are satisfied. This is important because it allows us to say that p is approximately binomial.
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