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Estimating 95% confidence interval for the given data.

The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds.

A. For a 90 percent confidence interval, what is the value of t?

B. Develop the 90 percent confidence interval for the population mean.

C. Would it be reasonable to conclude that the population mean is 63 pounds?

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