In the 2012 GSS, 605 of 790 males and 822 of 977 females indicated a belief in life after death. (Source: Data from CSM, UC Berkeley.)
a. Construct a 2 × 2 contingency table relating gender of respondent (SEX, categories male and female) as the rows to belief about life after death (POSTLIFE, categories yes and no) as the columns.
b. Find the four expected cell counts when assuming independence. Compare them to the observed cell counts, identifying cells having more observations than expected.
c. For this data, X² = 16.0. Verify this value by plugging into the formula for X² and computing the sum.