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A local newspaper claimed that 90% of Americans are currently confident of meeting their retirement goals. A Retirement Optimism Survey, conducted over a two week period, found that in a sample of 800 people, 84% 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 0.10 significance level. The null and alternative hypothesis would be: Ho: u = 0.9 Ho:p = 0.9 Ho:/ = 0.9 Ho:p = 0.9 Ho:p = 0.9 Ho: / = 0.9 H1:u 0.9 H1:p > 0.9 H1:p / 0.9 H1:p # 0.9 O O The test is: right-tailed two-tailed left-tailed The test statistic is: (to 3 decimals) The p-value is: (to 4 decimals) Based on this we: O Reject the null hypothesis O Fail to reject the null hypothesis