Question

You needed a supplier that could provide parts as close to 76.8 inches in length as...

You needed a supplier that could provide parts as close to 76.8 inches in length as possible. You receive four contracts, each with a promised level of accuracy in the parts supplied. Which of these four would you be most likely to accept?

Mean of 76.8 with a 99% confidence interval of 76.6 to 77.0
Mean of 76.8 with a 95% confidence interval of 76.6 to 77.0
Mean of 76.800 with a 99% confidence interval of 76.5 to 77.1
Mean of 76.800 with a 90% confidence interval of 76.6 to 77.0
Math   Statistics-And-Probability   
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Answer #1

We should accept the Mean of 76.8 with a 99% confidence interval of 76.6 to 77.0 .

Beacause the mean 76.8 with 99% confidence interval of 76.6 to 77.0 provides the largest confidence interval and the margin of error is also less as the compaire to other in the same confindence intrval


                                   

Answer : First option

Mean of 76.8 with a 99% confidence interval of 76.6 to 77.0

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