please complete case study ch8 Gulf Coast Reality (case problem 2) and ch9 Quality Associates, Inc. (case problem 1)
this is economic statistic.
I also send these files so please see added files

You need to use excel to calculate an mean, variance and standard deviation, and to put your data in order, however all other measures of location or dispersion, and any other math must be done by hand.

You also need to explain your results, regardless of if the question asks for an explanation. This explanation should be in terms that anyone can understand what you did, why you did it and why they should care about your results.