Author Question: Of 146 patients selected at random from a clinic, 35 were found to have high blood pressure. ... (Read 55 times)

krzymel · **on:** Jul 25, 2018

Of 146 patients selected at random from a clinic, 35 were found to have high blood pressure. Construct a 95 confidence interval for the percentage of all patients at this clinic that have high blood pressure.

A) 15.7 to 32.2 B) 17.0 to 30.9 C) 14.9 to 33.1 D) 18.1 to 29.8

Question 2

In a sample of 1367 patients who underwent a certain type of surgery, 190 experienced complications.

Find the margin of error for the 99 confidence interval used to estimate the percentage of all patients undergoing this surgery who experience complications. Give your answer as a percentage.
A) 2.41 B) 1.50 C) 0.936 D) 2.65