Question
The grades in the statistic course is known to be normally distributed with a standard deviation of 11. Suppose that we wish to estimate the
The grades in the statistic course is known to be normally distributed with a standard deviation of 11. Suppose that we wish to estimate the mean grade with an error that is less than 9 at a 99% confidence level. What sample size is required?
Solution:
- Critical Value =
- Sample Size =
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Algebra
Authors: Marvin L Bittinger
12th Edition
0321922913, 9780321922915
