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Mathematics, 08.04.2021 20:30 Keo247

A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with millimeters. A random sample of 15 rings has a mean diameter of . Construct a 99% two-sided confidence interval on the true mean piston diameter and a 95% lower confidence bound on the true mean piston diameter.

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A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is nor...
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