## [answered] A bottle maker calculates that 13% of his bottles are defec

A bottle maker calculates that 13% of his bottles are defective.

If the bottle maker is accurate, what is the probability that the proportion of defective bottles in a sample of 454 bottles would be less than 12% ? Round your answer to four decimal places.

Given: p = 0.13, q = 1 ? p = 0.87, n = 454

Taking normal approximation to binomial, the sampling distribution of sample proportion follows normal distribution.

Shape: Normal

pb ? N (?, ? 2 ),...

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This question was answered on: Sep 18, 2020

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