A sample of size n=63 is drawn from a population whose standard deviation is o= 28. Part 1 of 2 (a) Find the margin of error for a 99% confidence interval for u. Round the answer to at least three decimal places. The margin of error for a 99% confidence interval for u is Part 2 of 2 (b) If the sample size were n=43, would the margin of error be larger or smaller? (Choose one) ▼ because the sample size is (Choose one) v smaller larger

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