Howell reports on a study by Latan and Dabbs in which a researcher entered an elevator and dropped a handful of pencils, with the appearance that it was an accident. The question was whether the males or females who observed this mishap would be more likely to help pick up the pencils. Suppose the results of a similar study are shown in the table below.

	Helped Pick Up Pencils?
Yes	No	Total
Male observer	360	940	1,300
Female observer	290	993	1,283
Total	650	1,933	2,583

(a) Compute the proportions of males and females who helped pick up the pencils. (Round your answer to two decimal places.)

males -

females-

(b) Compute the chi-square statistic. (Round your answer to two decimal places.)

chi square statistic = --------