Angioplasty is a medical procedure in which an obstructed blood vessel is widened. In some cases, a wire mesh tube, called a 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 coated with a drug designed to prevent reblocking of the vessel. A total of  5324  patients received bare metal stents, and of these,  838  needed treatment for reblocking within a year. A total of  1125  received drug-coated stents, and

MATLAB: An Introduction with Applications
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 Angioplasty is a medical procedure in which an obstructed blood vessel is widened. In some cases, a wire mesh tube, called a 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 coated with a drug designed to prevent reblocking of the vessel. A total of 

5324

 patients received bare metal stents, and of these, 

838

 needed treatment for reblocking within a year. A total of 

1125

 received drug-coated stents, and 

141

 of them required treatment within a year. Can you conclude that the proportion of patients who needed retreatment differs between those who received bare metal stents and those who received drug-coated stents? Let 

p1

 denote the proportion of patients with bare metal stents who needed retreatment and 

p2

 denote the proportion of patients with drug-coated stents who needed retreatment. Use the 

=α0.01

 level of significance and the 

P

-value method with the TI-84 Plus calculator.

 

please state all 6 steps of the p method clearly!

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