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A random sample of 10 miniature Tootsie Rolls was taken from a bag Each piece was weighed on a very accurate scale The results in grams were?
please help me
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on
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 95 percent confidence interval for the true mean weight. (b) What sample size
would be necessary to estimate the true weight with an error of + or - 0.03 grams with 95 percent confidence?
(c) Discuss the factors which might cause variation in the weight of Tootsie Rolls during
manufacture.
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