A well-known brokerage firm executive claimed that 20% 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, 19% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is smaller than 20% at the 0.05 significance level. The null and alternative hypothesis would be: Ho:u = 0.2 Ho:p S 0.2 Ho: S 0.2 Ho:p2 0.2 Ho:u 2 0.2 Ho:p = 0.2 H:p + 0.2 H:p> 0.2 H > 0.2 H:p< 0.2 H:< 0.2 H:p 0.2 The test is: two-tailed left-tailed right-tailed The test statistic is: ] eto 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 20% 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, 19% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is smaller than 20% at the 0.05 significance level. The null and alternative hypothesis would be: Ho:u = 0.2 Ho:p S 0.2 Ho: S 0.2 Ho:p2 0.2 Ho:u 2 0.2 Ho:p = 0.2 H:p + 0.2 H:p> 0.2 H > 0.2 H:p< 0.2 H:< 0.2 H:p 0.2 The test is: two-tailed left-tailed right-tailed The test statistic is: ] eto 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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