Question 1188785: (1 point) The weights of a random sample of cereal boxes that are supposed to weigh 1 pound are given below. Estimate the standard deviation of the entire population with 98% confidence.
1.01, 1.03, 0.95, 1.03, 1.01, 1.01, 0.96, 0.98
LCL =
UCL =
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! mean is 0.9975 pounds
sd=0.0306 pounds
98% half-interval is t(0.99, df=7)*s/sqrt(n)
=2.998*0.0306/sqrt(8)
=0.0324 pounds
interval is (0.951, 1.0299) units pounds
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