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1 answer:
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Complete Question:
A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with ? = 0.001 millimeters. A random sample of 15 rings has a mean diameter of \bar{X}= 74.106. 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.
(Round your answers to 3 decimal places.)
(Calculate the 99% two-sided confidence interval on the true mean piston diameter.
Answer:
99% true sided confidence Interval on the true mean Piston diameter = (74.105, 74.107)
Step-by-step explanation:
Check the attached file for the complete solution
Using the probability concept, it is found that there is a 0.0556 = 5.56% probability that she will get a sum of 11.
<h3>What is a probability?</h3>A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem:
- Two cubes, each with 6 outcomes are rolled, hence there is a total of 6² = 36 outcomes.
- Of those, in two of them, which are (5,6) and (6,5), a sum of 11 is obtained.
Then:
0.0556 = 5.56% probability that she will get a sum of 11.
You can learn more about the probability concept at brainly.com/question/15536019