A random sample of 50 lumbar supports used by go-cart racers were subjected to a crash test, and tear was observed on 18 of these lumbar supports. Using the point estimate of p from the 50 supports, how many lumbar supports must be tested to be 95% confident that the error in estimating p is less than 0.02? O a. 2213 O b. None of the above O c. 2212 O d. 2401

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A random sample of 50 lumbar supports used by go-cart racers were subjected to a crash test, and
tear was observed on 18 of these lumbar supports. Using the point estimate of p from the 50 supports,
how many lumbar supports must be tested to be 95% confident that the error in estimating p is less
than 0.02?
a. 2213
b. None of the above
c. 2212
O d. 2401
Transcribed Image Text:A random sample of 50 lumbar supports used by go-cart racers were subjected to a crash test, and tear was observed on 18 of these lumbar supports. Using the point estimate of p from the 50 supports, how many lumbar supports must be tested to be 95% confident that the error in estimating p is less than 0.02? a. 2213 b. None of the above c. 2212 O d. 2401
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