A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on data collected from its automatic filling process, the amount of cheese inserted into the ravioli is normally distributed. To make sure that the automatic filling process is on target, quality control inspectors take a sample of 25 ravioli. The sample of 25 ravioli had a sample mean weight of 15 grams with a standard deviation of 1.5 grams. The 90% confidence interval for the true mean amount of cheese filling is 14.1609 to 15.8391 grams 14.7 to 15.3 grams O 14.4867 to 15.5133 grams O 13.5 to 16.5 grams O 14.94 to 15.06 grams

MATLAB: An Introduction with Applications
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A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on data collected from
its automatic filling process, the amount of cheese inserted into the ravioli is normally distributed. To
make sure that the automatic filling process is on target, quality control inspectors take a sample of 25
ravioli. The sample of 25 ravioli had a sample mean weight of 15 grams with a standard deviation of 1.5
grams. The 90% confidence interval for the true mean amount of cheese filling is
14.1609 to 15.8391 grams
O 14.7 to 15.3 grams
) 14.4867 to 15.5133 grams
13.5 to 16.5 grams
) 14.94 to 15.06 grams
Transcribed Image Text:A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on data collected from its automatic filling process, the amount of cheese inserted into the ravioli is normally distributed. To make sure that the automatic filling process is on target, quality control inspectors take a sample of 25 ravioli. The sample of 25 ravioli had a sample mean weight of 15 grams with a standard deviation of 1.5 grams. The 90% confidence interval for the true mean amount of cheese filling is 14.1609 to 15.8391 grams O 14.7 to 15.3 grams ) 14.4867 to 15.5133 grams 13.5 to 16.5 grams ) 14.94 to 15.06 grams
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