The heights of college basketball player is assumed normally distributed with a known standard deviation of 5 inches. The heights of a sample of 20 players was found to be 75.2 inches. Find a 80% confidence interval for the population mean. What is the LOWER BOUND? ______________________________ Note: Enter XXX.X AT LEAST ONE DIGIT BEFORE THE DECIMAL, ONE AFTER and round up. Thus, 347 is entered as 347.0, 3.52 is entered as 3.5, 0.2750 is entered as 0.3, -0.564 is entered as -0.6