Question

A random sample of college football players had an average height of 64.55 inches. Based on this sample, (63.2, 65.9) found to be a 92% confidence interval for the population mean height of college football players. A. We are 92% confident that the population mean height of college football players is between 63.2 and 65.9 inches.B. We are 92% confident that the population mean height of college football palyers is 64.55 inches.C. A 92% of college football players have height between 63.2 and 65.9 inches.D. There is a 92% chance that the population mean height of college football players is between 63 2 and 65.9 inches.

Answer 1

A. We are 92% confident that the population mean height of college football players is between 63.2 and 65.9 inches.

Explanation:

Confidence interval:

x% confidence

Of a sample

Between a and b.

Interpretation: We are x% sure(or there is a x% probability/chance) that the population mean is between a and b.

In this question:

92% confidence interval for the average height of football players is (63.2, 65.9).

Interpretation: We are 92% sure that the true average height of all college football players, that is, the population mean, is in this interval.

The correct answer is:

A. We are 92% confident that the population mean height of college football players is between 63.2 and 65.9 inches.