A golfer practices 60 twenty-foot putts a day and historically makes 25 percent of them.Calculate the standard error of the sample proportion.

Question

Quizplus · Accepted Answer

The formula for calculating the standard error of the sample proportion is:

SE = sqrt(p * (1-p) / n)

where p is the sample proportion (in decimal form), and n is the sample size.

In this case, the sample proportion is 0.25 (since the golfer historically makes 25% of the putts), and the sample size is 60.

So:

SE = sqrt(0.25 * 0.75 / 60) = 0.0559

Therefore, the answer is C: 0.0559.

A Golfer Practices 60 Twenty-Foot Putts a Day and Historically