QUESTION 1. A market research rm claims that more than 30% of the people who visit a mall actually buy something. A researcher stands by the exit door starting at noon and asks 10D randomly selected people as they are leaving whether they bought anything, and 39 said they did. Test the research firm's claim at a 10% significance level. 3) Dene the parameter and random variable of interest. In] State the null and alternative hypothesis, and identify the claim. c} Determine the distribution of the test statistic. [Check the relevant criteria.) d] Calculate the test statistic. e) Determine the p-value. fl State your decision. 3] State your conclusion