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A laboratory in Oregon is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 50 healthy residents has a mean chloride level of 106- L . If it is known that the chloride levels in healthy individuals residing in Oregon have a standard deviation of 42 mEq L find a 99% confidence interval for the true mean chloride level of all healthy Oregon 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 P Upper limit