A hospital director is told that 55% of the treated patients are insured. The director wants to test the claim that the percentage of insured patients is less than theexpected percentage. A sample of 310 patients found that 155 were insured. At the 0.02 level, is there enough evidence to support the director's claim?AnswerThere is sufficient evidence to support the claim that the percentage of insured patients is less than 55 % .○ There is not sufficient evidence to support the claim that the percentage of insured patients is less than 55 %.TablesKeypadKeyboard Shortcuts

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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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An investor thinks that investment preference on "real estate" is more than "stock" investment. In order to understand the true population proportion of investors who invest the money on "real estate" 1000 investors randomly selected are asked "What is your investment preference as "real estate" or "stock? 350 of the investors prefer "stock". Test the hypothesis that preference of stock is less than 60% at 296? Find the correct answer for the 4- hypothesis and find the correct answer for critical value. a) -3.31 b) Ho: P 0.60 H : P< 0.60 f) 13.26 8) Ho: P<0.60 H : P 0.60 h) H: P 0.60 H: P 0,60 1) Ho: P 0.60 H, : Р / 0.60 Cevad L 3.31
A humane society claims that less than 72% of households in a certain country own a pet. In a random sample of 700 households in that country, 476 say they own a pet. At a = 0.01, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. O B. More than % of households in the country own a pet. C. Less than 72 % of households in the country own a pet. O D. % of households in the country own a pet. Let p be the population proportion of successes, where a success is a household in the country that owns a pet. State H, and H. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) VA. Ho: p2 0.72 OB. Ho: p= OC. Ho: ps H p OE Ho: p> H:p O D. Ho: p< OF Ho: p H:p2 H ps H p= (b) Use technology to find the P-value. Identify the standardized test statistic. z- -2.36 al laces as needed.) Reject places as needed.) Fail to reject ect or fail to reject the null hypothesis and (d) interpret the…
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