nfidence level interval estimate is required for the difference between the means of two independent populations. The size of the first sample is 100, the mean is 150, the variance is 20, and the second sample is 100, the mean is 80, and the variance is 10. What are the confidence limits for this interval estimate? a) (19.10 ; 20.90) B) (69.10 ; 70.90) NS) (28.82 ; 40.09) D) (79.81 ; 90.90) TO) (68.92 ; 71.07)
nfidence level interval estimate is required for the difference between the means of two independent populations. The size of the first sample is 100, the mean is 150, the variance is 20, and the second sample is 100, the mean is 80, and the variance is 10. What are the confidence limits for this interval estimate? a) (19.10 ; 20.90) B) (69.10 ; 70.90) NS) (28.82 ; 40.09) D) (79.81 ; 90.90) TO) (68.92 ; 71.07)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A 95% confidence level
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Step 1
Confidence interval:
It is defined as the range that contains the value of a true population parameter. The confidence interval is constructed for various population parameters such as population mean, population standard deviation, and so on.
The confidence interval can be interpreted as follows: With a stated level of confidence, it can be said that the true population parameter for which the confidence interval is constructed lies within the obtained confidence interval.
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