Before any order is shipped, inspectors at Alvarez Manufacturing test a sample of finished units for breaking strength. You select a simple random sample of 49 units from a recently completed order and find that the sample average breaking strength is 789 pounds. Assume that the standard deviation of the breaking strengths for the population of units in the order is known to be 42 pounds. Construct a 90% confidence interval estimate of the average breaking strength you could expect to find if all the units in the order were tested. Please post an Initial Comment by sharing your answer with the class and by discussing one or more of the following topics: 1. What was your method for solving this problem? Please describe parts of your method that might be helpful to your classmates 2. To what extent and in what ways do you feel that solving this type of problem is useful for an MBA student