Probability and Statistics for Engineering and the Sciences
9th Edition
ISBN: 9781305251809
Author: Jay L. Devore
Publisher: Cengage Learning
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Chapter 12.4, Problem 50E
a.
To determine
Find the
b.
To determine
Find and interpret the interval estimate for the true
c.
To determine
Find the prediction interval of Fermi-level position for a single observation when the Ge concentration is 0.5.
Compare the width of the prediction interval with the confidence interval obtained in part (b).
d.
To determine
Find the simultaneous confidence interval for the true mean of Fermi-level position when the Ge concentration is 0.3, 0.5 and 0.7 with at least 97% joint confidence level.
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An article in the ASCE Journal of Energy Engineering (1999, Vol. 125, pp.59-75) describes a study of the thermal inertia properties of autoclaved aerated concrete used as a building material. Five samples of the material were tested in a structure, and the average interior temperatures (°C) reported were as follows: 23.01, 22.22, 22.04, 22.62, and 22.59. Test that the average interior temperature is equal to 22.5°C using alpha (a) = 0.05.
1.)This problem is a test on what population parameter?
a.Variance/ Standard Deviation
b.Mean
c.Population Proportion
d.None of the above
2.)What is the null and alternative 3 points hypothesis?
a.Ho / (theta = 22.5) , Ha: (0 # 22.5)
b.Ho / (theta > 22.5) , Ha: (0 # 22.5)
c.Ho / (theta < 22.5) , Ha: (theta >= 22.5)
d.None of the above
3.)What are the Significance level 3 points and type of test?
alpha = 0.05 two-tailed
alpha = 0.95 two-tailed
alpha = 0.95 one-tailed
None of the above
4.)What standardized test statistic will…
Chapter 12 Solutions
Probability and Statistics for Engineering and the Sciences
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