It is estimated that 16.6% of all adults in the U.S. are uninsured. You take a random sample of 206 adults seen by a certain clinic and find that 48 are uninsured.Use the normal approximation to the binomial distribution to estimate the probability of randomly selecting 206 adults with 48 or more of them being uninsured. (a) Find the mean.[ ](b) Find the standard deviation.[ ](c) Find the z-score.[ ](d) Find the probability.[ ]

Answered: It is estimated that 16.6% of all…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Citizens use an average of 650 pounds of paper a year. Suppose that the distribution is normal with a population standard deviation of 153.5 pounds. Suppose you take a random sample of 25 Citizens. What is the probability that the mean pounds of paper used in a year are between 500 and 700 pounds
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Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $190,000. Assume the standard deviation is $34,000. Suppose you take a simple random sample of 15 graduates. Round all answers to four decimal places if necessary. For a simple random sample of 15 graduates, find the probability that the average salary is between $180,932 and $187,421. For part d), is the assumption of normal necessary? NoYes
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