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. |
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