Question: Maximum breadth of sample of male Egyptian skulls from 4000 B.C. and 150 A.D. (based on data from Ancient Races of the Thebaid by Thompson and Randall-Maciver):

a) Find the mean, median, and mode, range, variance, and the standard deviation for each of the two samples.

b) Compare the two sets using descriptive measures.

c) Changes in head size over time suggest interbreeding with people from other regions. Do the head sizes appear to have changed from 4000 B.C. to 150 A. D.? Explain.