The mean age of the 43 presidents of the United States (as of 2011) on the day of
Chapter 9, Problem 58(choose chapter or problem)
The mean age of the 43 presidents of the United States (as of 2011) on the day of inauguration is 54.6 years, with a standard deviation of 6.3 years. A researcher constructed a 95% confidence interval for the mean age of presidents on inauguration day. He wrote that he was 95% confident that the mean age of the president on inauguration day is between 52.7 and 56.5 years of age. Is there anything wrong with the researchers analysis? Explain.
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