Archaeologists use pelvic bones to determine whether a, Ask an Expert

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Archaeologists use pelvic bones to determine whether a skeleton is that of a man or woman. Primitive cultures often buried their outstanding members (rulers, warriors, athletes, and so on) with greater ceremony than ordinary members. Using this fact, much can be learned about the status of women in an early culture by observing the frequency of skeletons of females in ceremonial graves. Suppose that an archaeologist discovers 20 graves that can be assumed to be a random sample of the ceremonial graves of a Stone Age culture in Wiltshire, England.

a. What is the most logical statistical hypothesis to be tested?

b. Suppose the region of rejection is: The number of skeletons of females is less than 8. What is the value of a?

c. Suppose pa ¼ 0.30; what is the numerical value of b?

d. What assumption is necessary to use this test procedure?

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