Note: For Problems 4-19, categorize each problem according to the parameter being estimated: proportion p, mean ,u, difference of means #1 #2, or difference of proportions p1 p2. Then solve the problem. 8: Archaeology: Pottery Shards of clay vessels were put together to reconstruct rim diameters of the original ceramic vessels found at the Wind Mountain archaeological site (see source in Problem 7). A random sample of ceramic vessels gave the following rim diameters (in centimeters): 15.9 13.4 22.1 12.7 13.1 19.6 11.7 13.5 17.7 18.1 (b) Compute an 80% condence interval for the population mean ,u of rim diameters for such ceramic vessels found at the Wind Mountain archaeological site