Wind Mountain is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces of prehistoric Native American clay vessels. One type of painted ceramic vessel is called Mimbres classic black-on-white. At three different sites the number of such sherds was counted in local dwelling excavations. Site I Site II Site III 51 47 33 45 19 57 32 9 62 19 18 28 25 28 57 22 35 Shall we reject or not reject the claim that there is no difference in population mean Mimbres classic black-on-white sherd counts for the three sites?
What is the level of significance?
a. 90%
b. 1%
c. 5%
d. 99%
e. 95%