A manufacturer of automobile purchases machine bolts from a

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Reference no: EM13632039

A manufacturer of automobile purchases machine bolts from a supplier who claims that no more than 5% of suppliers bolts are defective. From a sample of 400 bolts, it is found that 28 are defective. Is there sufficient evidence to reject the suppliers claim? Use 0.05 1. Identify the parameter(s) 2. Null Hypothesis 3. Alternative Hypothesis 4. Test Statistic 5. Rejection Region 6. conclusion

Reference no: EM13632039

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