SOLUTION: A random sample of 10 miniature tootsie rolls was taken from a bag. Each piece was weighed n a very accurate scale. The results in grams were: 3.087,3.131,3.241,3.241,3.270,3.353,

Algebra ->  Probability-and-statistics -> SOLUTION: A random sample of 10 miniature tootsie rolls was taken from a bag. Each piece was weighed n a very accurate scale. The results in grams were: 3.087,3.131,3.241,3.241,3.270,3.353,      Log On


   

Question 311421: A random sample of 10 miniature tootsie rolls was taken from a bag. Each piece was weighed n a very accurate scale. The results in grams were: 3.087,3.131,3.241,3.241,3.270,3.353,3.400,3.411,3.437,3.477
A)Construct a 90 percent confidence interval for the true mean weight.
B)What sample size would be necessary to estimate the true weight with an error of +- 0.003 grams with 90 percent confidence?
C)Discuss the factors which might cause variation in the weight of tootsie rolls during manufacture. (Data are from a project by MBA student Henry Scussel.) Tootsie
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Answered
Cheers,
Stan H.