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, 83% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is smaller than 90% at the 0.025 significance level. The null and alternative hypothesis would be: Ho: u 0.9 H1:u 0.9 H1:p # 0.9 H1 :p