In evaluating a forge crop, it is important to measure the concentration of various constituents in the plant tissue. In a study of reliability of such measurements, a batch of alfalfa was dried, ground, and passed through a fine screen. Five small (0.3 gm) aliquots of alfalfa were then analyzed for their content of insoluble ash. The results (gm/kg) were as follows: 10.0 8.9 9.1 11.7 7.9 For these data, calculate the mean, the standard deviation, and the standard error of mean.

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In evaluating a forge crop, it is important to measure the concentration of various constituents in
the plant tissue. In a study of reliability of such measurements, a batch of alfalfa was dried,
ground, and passed through a fine screen. Five small (0.3 gm) aliquots of alfalfa were then
analyzed for their content of insoluble ash. The results (gm/kg) were as follows:
10.0
8.9
9.1
11.7
7.9
For these data, calculate the mean, the standard deviation, and the standard error of mean.
Transcribed Image Text:In evaluating a forge crop, it is important to measure the concentration of various constituents in the plant tissue. In a study of reliability of such measurements, a batch of alfalfa was dried, ground, and passed through a fine screen. Five small (0.3 gm) aliquots of alfalfa were then analyzed for their content of insoluble ash. The results (gm/kg) were as follows: 10.0 8.9 9.1 11.7 7.9 For these data, calculate the mean, the standard deviation, and the standard error of mean.
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