Suppose the mean clear height of all U S Class A Suppose the mean clear height of all U.S. Class A..

Suppose the mean clear height of all U S Class A
Suppose the mean clear height of all U.S. Class A warehouses is unknown but the standard deviation is known to be 4 feet.What is the value of the mean clear height if 29% of U.S. Class A warehouses have a clear height less than 20 feet?

Suppose the mean clear height of all U S Class A