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 600 people, 570 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 0.01 significance level. The null and alternative hypothesis would be: Но:р 3 0.9 Но:д — 0.9 Но:р — 0.9 Но:р%3D 0.9 Но:д — 0.9 Но:р — 0.9 H:р < 0.9 Н:р < 0.9 H:p> 0.9 Hj:p # 0.9 Hi:д # 0.9 Hi:р> 0.9 The test is: two-tailed right-tailed left-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

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