An eyeglass manufacturer knows from past experience that 15.1% of manufactured lenses are defective due to scratches. Suppose that the manufacturer examined fifteen eyeglasses. Assume that the binomial distribution applies. (a) What are the number of trials n and the probability of "success" p in this case? n = 150, p = 0.15 or Use technology to determine the following probabilities, rounding each to 4 decimal places. (b) Probability that none of the lenses selected have scratches. Answer = 0.0858✓✔ o (c) Probability that all of the lenses selected have scratches. Answer = 0.0 (d) Probability that at least two lenses have scratches. Answer = 0.6853✓ O (e) Probability that at most two lenses have scratches. Answer = 0.6346 X (f) Is it unusual for at least six lenses to be scratched? Probability of at least six lenses to be scratched = -0.0588 x Because this probability is less than least six lenses scratched of 0.05, it is unusual to have at

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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An eyeglass manufacturer knows from past experience that 15.1% of manufactured lenses are defective due
to scratches. Suppose that the manufacturer examined fifteen eyeglasses. Assume that the binomial
distribution applies.
(a) What are the number of trials n and the probability of "success" p in this case?
n = 15 ✓
, p = 0.15 0
Use technology to determine the following probabilities, rounding each to 4 decimal places.
(b) Probability that none of the lenses selected have scratches.
Answer = 0.0858✔ O
(c) Probability that all of the lenses selected have scratches.
Answer = 0.0
✓ O
(d) Probability that at least two lenses have scratches.
Answer = 0.6853
(e) Probability that at most two lenses have scratches.
Answer = 0.6346 X
(f) Is it unusual for at least six lenses to be scratched?
Probability of at least six lenses to be scratched = -0.0588 x
Because this probability is less than
least six lenses scratched.
O 0.05, it is unusual
o to have at
Transcribed Image Text:An eyeglass manufacturer knows from past experience that 15.1% of manufactured lenses are defective due to scratches. Suppose that the manufacturer examined fifteen eyeglasses. Assume that the binomial distribution applies. (a) What are the number of trials n and the probability of "success" p in this case? n = 15 ✓ , p = 0.15 0 Use technology to determine the following probabilities, rounding each to 4 decimal places. (b) Probability that none of the lenses selected have scratches. Answer = 0.0858✔ O (c) Probability that all of the lenses selected have scratches. Answer = 0.0 ✓ O (d) Probability that at least two lenses have scratches. Answer = 0.6853 (e) Probability that at most two lenses have scratches. Answer = 0.6346 X (f) Is it unusual for at least six lenses to be scratched? Probability of at least six lenses to be scratched = -0.0588 x Because this probability is less than least six lenses scratched. O 0.05, it is unusual o to have at
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