document.write( "Question 347795: A manufacture claims that 5% of the finished items coming off an assembly line each dat are defective. A total of 5,000 items are produced a day, and 3 are randomly selected and inspected.\r
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document.write( "a. If the manufacturer's claim is correct, what is the probability all 3 randomly selected items are defective?\r
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document.write( "b. If all 3 randomly selected items are defective, would you infer the manufacturer's claim is incorrect? why?\r
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document.write( "c. if the manufacturer's claim is correct, what is the probability none of the 3 items are defective?\r
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document.write( "d. If none of the 3 items are defective, would you infer that the manufacturer's claim is incorrect? why? \n" );
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Algebra.Com's Answer #248669 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A manufacture claims that 5% of the finished items coming off an assembly line each day are defective. A total of 5,000 items are produced a day, and 3 are randomly selected and inspected. \n" ); document.write( "--------------------- \n" ); document.write( "a. If the manufacturer's claim is correct, what is the probability all 3 randomly selected items are defective? \n" ); document.write( "(0.05)^3 = 0.000125 \n" ); document.write( "-------------------- \n" ); document.write( " \n" ); document.write( "b. If all 3 randomly selected items are defective, would you infer the manufacturer's claim is incorrect? \n" ); document.write( "why? \n" ); document.write( "No; the probability that would happen is extremely low. \n" ); document.write( "The defect rate is probably higher. \n" ); document.write( "----------------------\r \n" ); document.write( "\n" ); document.write( "If the manufacturer's claim is correct, what is the probability none of the 3 items are defective? \n" ); document.write( "--- \n" ); document.write( "0.95^3 = 0.8574 \n" ); document.write( "----------------- \n" ); document.write( "d. If none of the 3 items are defective, would you infer that the manufacturer's claim is incorrect? \n" ); document.write( "why? \n" ); document.write( "His claim has not really been tested. You would have no reason to \n" ); document.write( "doubt it. \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |