assign6 - PSTAT 120C: Assignment # 6 These questiona are...

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PSTAT 120C: Assignment # 6 Due May 25, 2006 These questiona are due at the beginning of lecture next Thursday. 1. A poll of 1016 Americans asked two questions. (a) Do you think America is winning the war on terrorism? (b) How often do you watch the evening news? (Every day, Sometimes, or Never) The data collected can be cross-tabulated as Question (a) America is winning America is losing Question Every day 80 10 (b) Sometimes 615 73 Never 203 35 Calculate the χ 2 statistic to test whether or not the answers to these questions are independent. Interpret your result. 2. A market research study has investigated the relationship between an adult’s self-perception and his attitude toward small cars. A total of 299 people living in a large metropolitan area were surveyed. On the basis of their responses to a questionnaire, each was “assigned” to one of three distinct personality type: (1) cautious conservative, (2) middle of the roader, and (3) confident explorer. At the same time, each was solicited for his or her overall opinion of small
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assign6 - PSTAT 120C: Assignment # 6 These questiona are...

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