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