Question
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
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 of522judges, it was found that285were introverts.
(a) Letprepresent the proportion of all judges who are introverts. Find a point estimate forp. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval forp. (Round your answers to two decimal places.)
- lower limit
- upper limit
(c) Give a brief interpretation of the meaning of the confidence interval you have found.
- 1. We are 1% confident that the true proportion of judges who are introverts falls above this interval.
- 2. We are 99% confident that the true proportion of judges who are introverts falls within this interval.
- 3. We are 1% confident that the true proportion of judges who are introverts falls within this interval.
- 4. We are 99% confident that the true proportion of judges who are introverts falls outside this interval.
(c) Do you think the conditionsnp>5 andnq>5 are satisfied in this problem? Explain why this would be an important consideration.
- 1. Yes, the conditions are satisfied. This is important because it allows us to say thatpis approximately binomial.
- 2. No, the conditions are not satisfied. This is important because it allows us to say thatpis approximately normal.
- 3. Yes, the conditions are satisfied. This is important because it allows us to say thatpis approximately normal.
- 4. No, the conditions are not satisfied. This is important because it allows us to say thatpis approximately binomial.
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