Test for one sample-mean, Test the claim that the Snickers

Test for one sample-mean

Reference no: EM1317744

The "fun size" of a Snickers bar is supposed to weigh 20 grams. Because the punishment for selling candy bars that weigh less than 20 grams is so severe, the manufacturer calibrates the machine so that the mean weight is 20.1 grams. The quality-control engineer at M&M-Mars, the company that a manufacturer Snicker bars, is concerned that the candy does not weigh 20.1 grams. She obtains a random sample of 42 candy bars, weighs them, and obtains a mean weight of 20.3 grams with a standard deviation of 0.64 grams. Test the claim that the Snickers bars have a mean weight that is different than 20.1 grams. Because shutting down the plant is very expensive, test the claim at the .01 level of significance.

Reference no: EM1317744

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Test for one sample-mean : Test the claim that the Snickers bars have a mean weight that is different than 20.1 grams. Because shutting down the plant is very expensive, test the claim at the .01 level of significance.

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