Question

A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95% confidence level is 1.96.

Answer 1

Margin of error = 1.96 * √(pq/n)

p = 52/150
q = 1 - p
n = 150

Convert fractions to decimals. Substitute decimals into the above equation and solve for margin of error.

I hope this will help get you started.