Aaron wanted to know if a new ad promotion would bring more people into his store if he published a coupon in a local magazine. He felt that the promotion would be successful if at least 12% of customers who came to the store had the coupon. Out of 175 customers, 15% had the new coupon. Is this evidence that the promotion was successful? What is the appropriate null and alternative hypothesis? Ho: phat - 0.12 Ha: phat > 0.12 Ho: phat = 0.15 Ha: phat > 0.15 Ho: p= 0.12 Ha: p > 0.12

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