Question

Joey wants to determine whether his favourite basketball team «New York Knicks»performed better than his favourite hockey team «New York Rangers» over the past 10 years. He takes a random sample of 120 basketball games, out of which 85 ended with Knicks’victory, and an independent random sample of 160 hockey games, out of which 111 ended with Rangers’ victory. Find and interpret a95% confidence interval for the difference between thetwo population proportions.

Answer 1