From a large number of actuarial exam scores, a random sample of250

scores is selected, and it is found that172

of these250

are passing scores. Based on this sample, find a90

%

confidence interval for theproportion of all scores that are passing. Then find the lower limit and upper limit of the90

%

confidence interval.

Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. (If necessary, consult alist of formulas.)

Lower limit:

Upper limit: