A sample of size 83 is drawn from a population whose standard deviation is a 19. Find the margin of error for a 90% confidence

Question

A sample of size 83 is drawn from a population whose standard deviation is a 19. Find the margin of error for a 90% confidence interval for 1. Round the answer to at least three decamal places.
The margin of error for a 90% confidence interval for p is

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