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? Dа. 2213 Ob.2212 Dc 2401 O d. None of the above

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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?
O a. 2213
O b. 2212
O. 2401
O d. None of the above
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? O a. 2213 O b. 2212 O. 2401 O d. None of the above
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