Week 5 1

Question 1 1/ 1 point The population standard deviation for the height of college baseball players is 3.2 inches. If we want to estimate 90% confidence interval for the population mean height of these players with a 0.7 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number) Answer: The population standard deviation for the height of college baseball players is 3.2 inches. If we want to estimate 90% confidence interval for the population mean height of these players with a 0.7 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number) Answer: 57 w v+ Hide question 1 feedback Z-Critical Value = NORM.S.INV(.95) = 1.645 n - SD? x Z? ME? 3.22 x 1.6452 72 Z-Critical Value = NORM.S.INV(.95) = 1.645 n-= 3.22 x 1.6452 72