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gioplasty stent is placed in the vessel to help it remain open A study was...

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Basic Math

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gioplasty stent is placed in the vessel to help it remain open A study was conducted to compare the effectiveness of a bare metal stent with one that has been coate with a drug designed to prevent reblocking of the vessel A total of 5326 patients received bare metal stents and of these 842 needed treatment for rebloc within a year A total of 1123 received drug coated stents and 148 of them required treatment within a year Can you conclude that the proportion of patier who needed retreatment differs between those who received bare metal stents and those who received drug coated stents Let p denote the proportion of patients with bare metal stents who needed retreatment and p denote the proportion of patients with drug coated stents who needed retreatment Use the a 0 05 level of significance and the P value method with the TI 84 Plus calculator Part 1 of 4 State the appropriate null and alternate hypotheses Ho P P2 H P P This hypothesis test is a left tailed Part 1 4 Part 2 of 4 test Find the P value Round the answer to at least four decimal places

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