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The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 23...

The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 23 people reveals the mean yearly consumption to be 78 gallons with a sample standard deviation of 20 gallons.
(a-1) What is the value of the population mean?
  Population mean (Click to select)78 Unknown 20  
(a-2) What is the best estimate of this value?
  Estimate population mean   
(c)

For a 98 percent confidence interval, what is the value of t? (Round your answer to 3 decimal places.)
  Value of t   
(d)

Develop the 98 percent confidence interval for the population mean. (Round your answers to 3 decimal places.)
  Confidence interval for the population mean is  and .
(e) Would it be reasonable to conclude that the population mean is 69 gallons?
  
(Click to select)Yes No It is not possible to tell.
Math   Statistics-And-Probability   
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