A sample of 100 people is classified by gender (male/female) and by whether or not they are registered voters. The sample consists of 80 females and 20 males, and has a total of 60 registered voters. If these data were used for a chi-square test for independence, what is the expected frequency for males who are registered voters?
A) 12
B) 20
C) 40
D) 60
Question 2
If other factors are held constant, which set of sample characteristics is most likely to produce a significant t statistic?
A) n = 25 with s2 = 100
B) n = 25 with s2 = 400
C) n = 100 with s2 = 100
D) n = 100 with s2 = 400
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