Determine the standard error of the mean
A simple random sample of 40 items resulted in sample mean of 25. The population standard deviation is 5.
a. Determine the standard error of the mean (to 2 decimals)?
b. At 95% confidence, determine the margin of error (to 2 decimals)?
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A simple random sample of 40 items resulted in sample mean of 25. The population standard deviation is 5. Determine the standard error of the mean (to 2 decimals)?
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