Use the z statistic to conduct a test of the hypothesis that the proportion of deaths in the…

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Use the z statistic to conduct a test of the hypothesis that the proportion of deaths in the group of patients in the Concorde study (Table 6.2) who received immediate AZT treatment equals the proportion of deaths in the group that deferred treatment. Comment on Dues berg’s analysis of the data as reported in Cohen ([Cohen94]) and on page 126.

Table 6.2