Consider two classes of business statistics. Suppose that average test score for the first class is 82 and the average test score for the second class is 78.2. What is the point estimate for the difference in the mean test scores? Answer to as many decimal places as necessary. Consider two classes of business statistics. Suppose that average test score for the first class is 81 and the average test score for the second class is 83. What is the point estimate for the difference in the mean test scores? Answer to as many decimal places as necessary. You are going to test a hypothesis concerning the difference between two population means. One of the steps to do this is to find the standard error. Suppose you have two samples with 50 observations each and standard deviations of 74.5 and 68.1. What is the standard error? Answer to two decimal places. You are going to test a hypothesis concerning the difference between two population means. One of the steps to do this is to find