We want to construct a confidence interval. Find the critical z a/2 value. The confidence level is 95%, o= 3903 thousand dollars, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team.

z a/2 = ___

40 30 Frequency 20 10- 4000 8000 12000 16000 20000 Salary (thousands of dollars)