Confidence Interval for Difference
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12. Suppose that A is the curing method that is commonly used and that B and C are new curing methods developed by the engineer. A 95% confidence interval for l = muA - (1/2)(muB + muC) is:
(see attachment for multiple choice solutions)
On number 12, how can we get +- 0.941? The standard deviation is 1.865, right??
The means and ANOVA table are on page 4 of the attached file.
See the attached file.
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Solution Summary
The solution determines the confidence interval for difference for the questions given.
Solution Preview
The -1.865 is the estimation of, the difference between the mean of treatment A and the average of the means of treatments B and C. Because ...
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