Answer to Question #299807 in Statistics and Probability for secret

Question

A new sneaker claims that it can make male athletes jump higher. A sample of 54 male athletes were asked to jump once with their own sneakers on and once wearing the new sneakers. The average jump increased by 0.98 inches with the new sneakers with a standard deviation of 1.22 inches. What is the standard error of the 95% confidence interval for the average jump increase?

Answer 1

$$SE=s/\sqrt{n}=1.22\ in/\sqrt{54}\approx0.166\ in$$