The Sugar Producers Association wants to estimate the mean yearly sugar consumpt

Question

The Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 27 kg with a standard deviation of 9 kg. Assume a normal population. a. What is the value of the population mean? Population mean What is the best estimate of this value? Estimate value c. For a 90 percent confidence interval, what is the value of t? (Round your answer to 3 decimal places.) Value of t d. Develop the 90 percent confidence interval for the population mean. (Round your answers to 3 decimal places.) Confidence interval for the population mean is and .

Explanation / Answer

c. For a 90% confidence interval, what is the value of t? That depends on the degrees of freedom for the problem. In your problem df=15, so the t-value is 1.753

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