The data from two samples of the processed kaolin from two calciners is collected, and its...
The data from two samples of the processed kaolin from two calciners is collected, and its bright-ness is measured. The results of the analysis comparing these two samples are given below:
Descriptive Statistics:
| Group | N | MEAN | SD |
| CALCINER A | 12 | 91.558 | 2.323 |
| CALCINER B | 12 | 92.500 | 1.563 |
Build the 95% confidence interval for the difference of mean brightness in processed kaolin from calciner a, and B. Does the confidence interval match your conclusions from parts (d), and (e)? Ex-plain.
Homework Answers
Confidence interval :-
DF = 19
Lower Limit = 
Lower Limit = -2.6337
Upper Limit = 
Upper Limit = 0.7497
95% Confidence interval is ( -2.6337 , 0.7497 )
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