A manufacturer of cheese filled ravioli wants to make sure that its automatic filling process is on target.Based on a sample of 25 ravioli the mean weight of cheese filling is
Estimated to be 15 grams with a standard deviation of 1.5 grams.However, the quality
Control inspectors wish to estimate the mean weight of cheese filling more accurately so
That they can be 99% confident that it is within .25 grams of the true mean.How many
Ravioli should they sample?
A)150
B)543
C)212
D)410
E)239

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The Answer of A manufacturer of cheese filled ravioli wants to make sure that its automatic filling process is on target.Based on a sample of 25 ravioli the mean weight of cheese filling is
Estimated to be 15 grams with a standard deviation of 1.5 grams.However, the quality
Control inspectors wish to estimate the mean weight of cheese filling more accurately so
That they can be 99% confident that it is within .25 grams of the true mean.How many
Ravioli should they sample?
A)150
B)543
C)212
D)410
E)239

A Manufacturer of Cheese Filled Ravioli Wants to Make Sure