Mathematics, 23.10.2019 21:00 nakeytrag

Barilla, a manufacturer of pasta has historical data that their packages of angel hair pasta have a known constant variance of 16 grams and average weight of 450 grams. however, their cardboard packaging often affects the total weight and a recent sample of 25 boxes found the average weight to be 430 grams. what is the margin of error for a 95% confidence interval to two decimal places?

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