A psychologist would like to estimate the proportion of Americans that say "the future of the nation is a significant source of stress for me." To help form an estimate, the psychologist randomly selected 862 Americans and found that 67.5% of the sample agreed with the statement "the future of the nation is a significant source of stress for me. Using a 96% confidence level, determine the margin of error,E, and a confidence interval for the true proportion of all Americans that say the "the future of the nation is a significant source of stress for me." Report the confidence interval using interval notation. Round solutions to four decimal places, if necessary. The margin of error is given by E=. A 96% confidence interval is given by
Americans are stressed out!
A psychologist would like to estimate the proportion of Americans that say "the future of the nation is a significant source of stress for me." To help form an estimate, the psychologist randomly selected 862 Americans and found that 67.5% of the sample agreed with the statement "the future of the nation is a significant source of stress for me.
Using a 96% confidence level, determine the margin of error,E, and a confidence interval for the true proportion of all Americans that say the "the future of the nation is a significant source of stress for me." Report the confidence interval using interval notation. Round solutions to four decimal places, if necessary.
The margin of error is given by E=.
A 96% confidence interval is given by
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