Question

The heights of 10-year-old American children are normally distributed with a mean height of 4 feet and 4 inches (or 52 inches) and a standard deviation of 5 inches. To be allowed to go on a particular ride

Answer 1

To estimate the mean height of students at your college or university to within 1 in. with 93 percent confidence, you need to determine the sample size.

Step-by-step explanation:

To estimate the mean height of students at your college or university to within 1 in. with 93 percent confidence, you need to determine the sample size. The formula to calculate the sample size for estimating the mean is:

n = (Z * σ / E)^2

Where n is the sample size, Z is the Z-score corresponding to the desired level of confidence, σ is the standard deviation, and E is the desired margin of error. In this case, since the p-value is almost zero, the data supports the claim that the mean height is less than 73 inches.