SOLUTION: Create a 99% confidence interval of the number of calories in 3 ounces of french fries based on a sample of 8 batches of french fries, weighing 3-ounce each, taken from different

Algebra ->  Statistics  -> Confidence-intervals -> SOLUTION: Create a 99% confidence interval of the number of calories in 3 ounces of french fries based on a sample of 8 batches of french fries, weighing 3-ounce each, taken from different      Log On


   



Question 1171311: Create a 99% confidence interval of the number of calories in 3 ounces of french fries
based on a sample of 8 batches of french fries, weighing 3-ounce each, taken from
different restaurants. The sample has a mean of 244.5 and a sample standard deviation,
s, of 21.7. Interpret the results.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
the half-interval is t(0.995 df=7)*s/sqrt(n)
=3.499*21.7/sqrt(8)=26.84
the 99%CI is (217.65, 271.34) units ounces.
We are extremely confident (99%) that the true value is contained in the interval.