1. A Pew Poll conducted in 2013 surveyed a random sample of 200 adult Americans and 36of them said that they had seen a ghost. Find a 99% confidence interval for thepercentage of all Americans who believe they have seen a ghost. Interpret yourinterval. Round to three decimal places.2. In a simple random sample of 1200 Americans age 20 and over, 138 of them were foundto have Type I diabetes. Round all answers to three decimal places.a) Report a 95% confidence interval for the proportion of all Americans age 20 and overwith diabetes.}b) According to the Centers for Disease Control and Prevention, nationally, 10.7% of allAmericans age 20 and over have diabetes. Does the confidence interval you foundsupport or refute this claim? Explain.8X

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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1. A Pew Poll conducted in 2013 surveyed a random sample of 200 adult Americans and 36 of them said that they had seen a ghost. Find a 99% confidence interval for the percentage of all Americans who believe they have seen a ghost. Interpret your interval. Round to three decimal places.