You may need to use the appropriate appendix table or technology to answer this question. A quality control specialist has determined that 28% of the microchips produced in a certain facility are defective. A random sample of 190 tems is selected and checked for defects. (a) Determine the standard error of the proportion. (Round your answer to four decimal places.) (b) what is the probability that the sample will contain more than 21.6% defective micrechips? (Round your answer to four decimal places) () What is the probability that the sample wil contain fewer than 29% defective units? (Round your answer to four decimal places)
You may need to use the appropriate appendix table or technology to answer this question. A quality control specialist has determined that 28% of the microchips produced in a certain facility are defective. A random sample of 190 tems is selected and checked for defects. (a) Determine the standard error of the proportion. (Round your answer to four decimal places.) (b) what is the probability that the sample will contain more than 21.6% defective micrechips? (Round your answer to four decimal places) () What is the probability that the sample wil contain fewer than 29% defective units? (Round your answer to four decimal places)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question.
A quality control specialist has determined that 28% of the microchips produced in a certain facility are defective. A random sample of 190 items is selected and checked for defects.
(a) Determine the standard error of the proportion. (Round your answer to four decimal places.)
(b) What is the probability that the sample will contain more than 21.6% defective microchips? (Round your answer to four decimal places.)
(c) What is the probability that the sample wl contain fewer than 29% defective units? (Round your answer to four decimal places.)
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