An article in Fortune (September 21, 1992) claimed that nearly one-half of all engineers continue academic studies beyond the B.S.degree, ultimately receiving either an M.S. or a Ph.D. degree. Data from an article in Engineering Horizons (Spring 1990) indicated that117 of 484 new engineering graduates were planning graduate study.Are the data from Engineering Horizons consistent with the claim reported by Fortune? Use a = 0.02 in reaching your conclusions.Find the P-value.Give your answer.The true proportion of engineering students planning graduate studiesThe P-value is less than✓ (choose the least possible).significantly different from 0.5 at a = 0.02.

To find the p-value, we have to calculate the test-statistic first. The z test statistic for…

Answered: An article in Fortune (September 21,…

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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You may need to use the appropriate appendix table or technology to answer this question. In 2014, the Centers for Disease Control and Prevention (CDC) reported the percentage of people 18 years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of 0.30. (a) How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of 0.02? Use 95% confidence. (Round your answer up to the nearest integer.) (b) Assume that the study uses your sample size recommendation in part (a) and finds 660 smokers. What is the point estimate of the proportion of smokers in the population? (Round your answer to four decimal places.) (c) What is the 95% confidence interval for the proportion of smokers in the population? (Round your answers to four decimal places.) to
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