A well-known brokerage firm executive claimed that 40% of investors are currently confident of meeting theirinvestment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sampleof 800 people, 44% of them said they are confident of meeting their goals.Test the claim that the proportion of people who are confident is larger than 40% at the 0.10 significance level.The null and alternative hypothesis would be:=Hop≥ 0.4 Ho: μ 0.4 Ho: pH₁ p < 0.4 H₁ : μ‡0.4:The test is:The test statistic is:two-tailed left-tailed right-tailed oThe p-value is:Based on this we:0.4 H : < 0.4 H:p<0.4 Ho:p>0.4 ởH₁ μ> 0.4 H₁: p > 0.4 H₁: μ< 0.4:H₁: p0.4Reject the null hypothesisFail to reject the null hypothesis(to 3 decimals)(to 4 decimals)

Answered: Image /qna-images/answer/c5f62ef4-b875-4ec9-ac21-17afe85a6031.jpg

Answered: A well-known brokerage firm executive…

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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