SOLUTION: The sugar producers association wants to estimate the mean yearly sugar consumption. A sample of 25 people reveals the mean yearly consumption to be 27 kg with a sample standard d
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Question 1162315: The sugar producers association wants to estimate the mean yearly sugar consumption. A sample of 25 people reveals the mean yearly consumption to be 27 kg with a sample standard deviation pf 90kg. Assume a normal population. Develop a 99% confidence interval for the annual consumption pf sugar. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! 99%CI half-interval is t 0.995, df=24* s/sqrt(n). NOTE: will use 9.0 kg and NOT 90 kg as sd.
=2.797*9/sqrt(25)
=5.03 which is subtracted from and added to the mean
99%CI is (21.97, 32.03) units kg
