Mathematics, 11.04.2020 02:55 mickecia1

Greatest president ~ A Gallup Poll of American adults in February 2009 asked the following question. "Which of the following presidents would you regard as the greatest: Washington, Franklin Roosevelt, Lincoln, Kennedy, or Reagan?" The order of the presidents was rotated to avoid bias. Based on the sample, a 95% confidence interval for the actual proportion American adults who choose Lincoln as the greatest is given by (0.1759, 0.2204).

What is the sample proportion? Give the exact answer as a decimal.

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