A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with σ = 0

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2 years ago

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A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with σ = 0

.001 millimeters. A random sample of 15 rings has a mean diameter of x = 74.036 millimeters.
(a) Construct a 99% two-sided confidence interval on the mean piston ring diameter.
(b) Construct a 99% lower-confidence bound on the mean piston ring diameter. Compare the lower bound of this confidence interval with the one in part (a).

Mathematics

1 answer:

Lubov Fominskaja [6] · Answer 1 · 2022-05-28T07:59:22+03:00

Lubov Fominskaja [6]2 years ago

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Answer:

The answer along with the explanation is provided in the attached document.

Explanation:

The explanation is given in attached document file.

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