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Mathematics, 02.07.2020 07:01 sydc1215

3. A team of eye surgeons has developed a new technique for a risky eye operation to restore the sight of people blinded from a particular disease. Under the old method only 30% of the patients
recover their eyesight. Surgeons at various hospitals have performed 225 operations using the
new method and in 88 the patients recovered their eyesight. Using a 01 level of significance, is
there evidence that the new method is better than the old one? (30 points)

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3. A team of eye surgeons has developed a new technique for a risky eye operation to restore the si...
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