Posted by **penelope** on Friday, July 12, 2013 at 6:21pm.

Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you.

In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct a 95% confidence interval for the actual percentage of judges who are introverts

1.Enter the SD.Round your answer to 3 decimal places.

2.Enter the SE for the percentage. Round your answer to two decimal places.

3.What is the z-value for a 95% confidence interval?

4.What is the lower boundary of the interval? Round your answer to one decimal place.

5.What is the upper boundary of the interval? Round your answer to one decimal place.

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