# Question: After 7 months none of 238 angioplasty patients who received

After 7 months, none of 238 angioplasty patients who received a drug-coated stent to keep their arteries open had experienced restenosis (re-blocking of the arteries).

(a) Use MINITAB to construct a 95 percent binomial confidence interval for the proportion of all angioplasty patients who experience restenosis.

(b) Why is it necessary to use a binomial in this case?

(c) If the goal is to reduce the occurrence of restenosis to 5 percent or less, does this sample show that the goal is being achieved?

(a) Use MINITAB to construct a 95 percent binomial confidence interval for the proportion of all angioplasty patients who experience restenosis.

(b) Why is it necessary to use a binomial in this case?

(c) If the goal is to reduce the occurrence of restenosis to 5 percent or less, does this sample show that the goal is being achieved?

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