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2. A team of eye surgeons has developed a new technique for eye operation to restore the sight of people. Under the old method, it is known that only 30% of the patients who undergo this operation recover their eyesight. Suppose that surgeons have performed n = 225 operations using the new method and that x = 88 have been successful. Can we justify the claim that the population proportion is different from 30% ? Use a a=0.01. (Hint: use the Normal Distribution)

2. A team of eye surgeons has developed a new technique for eye operation to restore the sight of people. Under the old method, it is known that only 30% of the patients who undergo this operation recover their eyesight. Suppose that surgeons have performed n = 225 operations using the new method and that x = 88 have been successful. Can we justify the claim that the population proportion is different from 30% ? Use a a=0.01. (Hint: use the Normal Distribution)

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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2. A team of eye surgeons has developed a new technique for eye operation to restore the sight of people. Under the old method, it is known that only 30% of the patients who undergo this operation recover their eyesight. Suppose that surgeons have performed n = 225 operations using the new method and that x = 88 have been successful. Can we justify the claim that the population proportion is different from 30% ? Use a a=0.01. (Hint: use the Normal Distribution)
Transcribed Image Text:2. A team of eye surgeons has developed a new technique for eye operation to restore the sight of people. Under the old method, it is known that only 30% of the patients who undergo this operation recover their eyesight. Suppose that surgeons have performed n = 225 operations using the new method and that x = 88 have been successful. Can we justify the claim that the population proportion is different from 30% ? Use a a=0.01. (Hint: use the Normal Distribution)
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