On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa's rate? The data shown below ($) contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.

\f(a) Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa. (Enter !: for i as needed.) H0: Ha: (b) What is the test statistic for your hypothesis test in part (a)? (Round your answer to three decimal places.) E What is the pvalue for your hypothesis test in part (a)? (Round your answer to four decimal places.) E (c) At a : 0.05, can your null hypothesis be rejected? What is your conclusion? 0 Reject HD. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa. 0 Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa. 0 Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs signicantly from the rate per 5 CCF of residential water in Tulsa. O Reject HD- The mean rate per 5 CCF of residential water throughout the United States does not differ signicantly from the rate per 5 CCF of residential water in Tulsa. (d) Repeat the preceding hypothesis test using the critical value approach. State the null and alternative hypotheses. (Enter != for i as needed.) Ho: H : a Find the value of the test statistic. [Round your answer to three decimal places.) E State the critical values for the rejection rule. Use a = 0.05. (Round your answers to three decimal places. If the test is one7tai|ed, enter NONE for the unused tail.) test statistic s |:| test statistic 2 |:|