Question 2: How would you write the standard error of the mean FEV1 to three decimal places?
Standard error of the mean is included in the output from Explore:
| 90% Confidence |
Interval for Mean
|5% Trimmed Mean||4.0561|
The standard error of the mean is given as .08895. To three decimal places this is 0.089 litres.
Note that I have included a leading zero as well as removing the last two digits and rounding up. This makes the number look better and is easier to read. I have also added the units.
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Last updated: 6 October, 2006.
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