The Office of Student Services at a large western state university maintains information on the study habits of its full-time students. Their studies indicate that the mean amount of time undergraduate students study per week is 20 hours. The hours studied follows the normal distribution with a population standard deviation of 6 hours. Suppose we select a random sample of 36 current students. What is the standard error of the mean? rev: 12_23_2020_QC_CS-245229 Multiple Choice 2.50 6.00 0.75 1.00