1a)In order to determine the true mean pulse rate of Ohio citizens you take a sample...

1a)In order to determine the true mean pulse rate of Ohio citizens you take a sample of 16 and the sample mean is 72 with a standard deviation of 9 beats per minute. Based on this data, the 95% confidence interval for the true mean pulse rate of Ohio Citizens is 72 plus or minus__________?

b) In order to determine the true mean pulse rate of Ohio citizens you take a sample of 16 and the sample mean is 72 with a standard deviation of 9 beats per minute.

If you wish to increase the accuracy of your estimate, what is the easiest way to do this
-increase sample size
or
-substitute the z value into the confidence interval equation?

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Expert Solution

orchestra answered 2 years ago

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