Stats homework please help

Question

Suppose the average distance of fly balls hit to the outfield (in baseball) is normally

distributed with a mean of 250 feet and a standard deviation of 50 feet. We randomly sample 49 fly balls. Let 𝑋~(𝜇𝑥̅ , 𝜎𝑥̅ ) where 𝑋 = the average distance for 49 fly balls.

(a)Find the sample means.

(b) Find the standard error.

Answer 1

The sample mean is the population mean, 250 ft.

se is the standard deviation divided by the square root of n

50/sqrt(49) = 50/7 = 7 1/7 = 7.1429