The Davis Police department aims to respond to emergency (911) calls in 7 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute 42 seconds. Would a sample of 18 emergency calls with a mean response time of 7 minutes 22 seconds provide sufficient evidence to show that the goal is not being met at a = .01? () Choose the appropriate hypotheses. a. H: 7 minutes vs H: >7 minutes, Reject Hy if Zcalc > 2.326 b. H: 7 minutes vs H: 2.326 (b) Calculate the value of the test statistic. (Round your answer to 2 decimal places.) Zcalc (c) Use Excel to find the p-value. (Round your answer to 4 decimal places.) p-value (d) If a = .01, we would O Fail to reject the null hypothesis. Reject the null hypothesis.