8.2.1

Consider the chi-square statistic.

When will the chi-square statistic be 0?

a. The chi-square can be zero only if all the individual conditional probabilities p^i

are equal to each other.

b. The chi-square can be zero only if all the individual conditional probabilities p^i

are equal to 1.

c. The chi-square can be zero only if all the individual conditional probabilities p^i

are not equal to each other.

8.2.6

Do different generations view marriage differently? A 2010 survey of a random sample of adult Americans conducted by the Pew Research Center asked the following question of each participant: "Is marriage becoming obsolete?"

Generation Millennial Gen X Boomers Age 65+ Total (ages 18-29) (ages 30-45) (ages 46-65) Marriage obsolete? Yes 248 292 500 66 1106 No 282 436 809 145 1672 Total 530 728 1309 211 2778