2 = 3 = 4 5 7 8 9 10 11 12 13 14 A laboratory in Arizona is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 80 healthy residents has a mean chloride level of 99 mEq L If it is known that the chloride levels in healthy individuals residing in Arizona have a standard deviation of 36 mBq 1 , find a 90% confidence interval for the true mean chloride level of all healthy Arizona residents. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: X ? Upper limit: Save For Later Submit Assignm