A well-known brokerage firm executive claimed that 90% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 200 people, 98% of them said they are confident of meeting their goals: Test the claim that the proportion of people who are confident is larger than 90% at the 0.005 significance level. The null and alternative hypothesis would be: Ho:p = 0.9 Ho:u = 0.9 Ho:p 2 0.9 Ho:u 2 0.9 Ho:µ <0.9 Ho:p< 0.9 H1:p 0.9 H1: 0.9 H1:p < 0.9 H1:u < 0.9 H1:p > 0.9 H1:p > 0.9 %3D %3D The test is: two-tailed left-tailed right-tailed The test statistic'is: (to 3 decimals) The p-value is: (to 4 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis

A well-known brokerage firm executive claimed that 90% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 200 people, 98% of them said they are confident of meeting their goals: Test the claim that the proportion of people who are confident is larger than 90% at the 0.005 significance level. The null and alternative hypothesis would be: Ho:p = 0.9 Ho:u = 0.9 Ho:p 2 0.9 Ho:u 2 0.9 Ho:µ <0.9 Ho:p< 0.9 H1:p 0.9 H1: 0.9 H1:p < 0.9 H1:u < 0.9 H1:p > 0.9 H1:p > 0.9 %3D %3D The test is: two-tailed left-tailed right-tailed The test statistic'is: (to 3 decimals) The p-value is: (to 4 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis

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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