In a survey of 630 randomly selected U.S. companies, 535 reported that they performed drugtesting on their employees and/or applicants last year. At the 1% significance level, is theresufficient evidence to conclude that the percentage of U.S. firms that drug-tested last year exceedsthe previous year's figure of 74%? Formulate and carry out the one-population z-test.Your answer should include:a) a statement of the hypothesesb) the critical value for the testc) the value of the test statisticd) a statement of conclusionTo get you started, here is the null hypothesis:Ho.p = 0.74

1) Denote p as the true percentage of U.S. firms that drug-tested last year.

Answered: In a survey of 630 randomly selected…

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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