A sandwich chain advertises that it has foot-long sandwiches. Wanting to know if this advertisement is accurate,

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A sandwich chain advertises that it has foot-long sandwiches. Wanting to know if this advertisement is accurate, you measured a random sample of forty sandwiches and found the mean length as 11.9 inches and the standard deviation is 0.4 inches. Using the table below, find the 95% confidence interval. Confidence Level (as a percent) -value 90 1.645 95 1.960 99 2.576 11.78 to 12.02 11.80 to 12.00 11.74 to 12.06 11.89 to 11.99

Posted Date: May 17, 2024 07:03 PM

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A sandwich chain advertises that it has foot-long sandwiches. Wanting to know if this advertisement is accurate,

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