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Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to /2, (b) find the critical value Zor />, or (c) state that neither the normal distribution nor the t distribution applies. The confidence level is 95%, o is not known, and the histogram of 60 player salaries (in thousands of dollars) of football players on a team is Frequency as shown. 10- 4000 8000 12000 16000 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. to/2= (Round to two decimal places as needed.) O B. Zo2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies