Each piexe was weighed on a very accurate scale

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A radom sample of 10 mininature Toostie Rolls was taken from a bag. Each piexe was weighed on a very accurate scale. The result in grams were 3.87 3.131 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 +0.03 grams with 90 confidence? (c) Discuss the factors which might cause variation in the weight of Toosie Rolls during manufacture.

Reference no: EM13198408

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Each piexe was weighed on a very accurate scale : A radom sample of 10 mininature Toostie Rolls was taken from a bag. Each piexe was weighed on a very accurate scale. The result in grams were 3.87 3.131 3.241 3.270 3.353 3.400 3.411 3.437 3.477

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