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...

Extracted text: 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: = 0.9 Ho:p > 0.9 Ho: u > 0.9 Ho:u < 0.9="">< 0.9="" h1:p="" 0.9="" h1:="" 0.9="" h1:p="">< 0.9="" h1:u="">< 0.9="" h1:="" u=""> 0.9 H1:p > 0.9 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: Fail to reject the null hypothesis O Reject the null hypothesis hp