Question
A simple random sample of size n is drawn from a populationt that normally distributed. The sample meanis found to be 108, and the sample
- A simple random sample of size n is drawn from a populationt that normally distributed. The sample meanis found to be 108, and the sample deviation is found to be 10.
a. Construct a 96% confidence interval about u if the sample is size is 25.
b.Construct a 96% confidence interval about u if the sample is size is 10.
c. Compare your results from parts a and b. How does the decreasing the sample size effect the margin of error?
2.A simple random sample of size n is drawn. The sample mean is found to be 18.4, and the sample standard deviation is found to be 4.5.
a. Construct a 95% confidence interval about u if the smaple is size is 25.
b.Construct a 95% confidence interval about u if the smaple is size is 50.
c. Compare your results from parts a and b. How does the increasing the sample size effect the margin of error?
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Differential Geometry And Continuum Mechanics
Authors: Gui Qiang G Chen, Michael Grinfeld, R J Knops
1st Edition
331918573X, 9783319185736
