Problem
Score on last try: 0.6 of 1 pts. See Details for more. \( > \) Next question \( \rightleftarrows \) Get a similar question You can retry this Hypothesis Test for a Population Proportion A well-known brokerage firm executive claimed that \( 10 \% \) of investors are their investment goals. An XYZ Investor Optimism Survey, conducted over a a sample of 700 people, \( 16 \% \) of them said they are confident of meeting the Test the claim that the proportion of people who are confident is larger than level. The null and alternative hypothesis would be: Type here to search
Solution
Step 1 ：Step 1: Define the null and alternative hypothesis: \( H_0: p = 0.1 \) and \( H_a: p > 0.1 \)
Step 2 ：Step 2: Calculate the test statistic: \( z = \frac{p̂ - p_0}{\sqrt{\frac{p_0(1-p_0)}{n}}} \)
Step 3 ：Step 3: Determine the critical value and make a decision about the hypothesis
