Question: In evaluating a forage crop, it is important to measure the concentration of various constituents in the plant tissue. In a study of the reliability

In evaluating a forage crop, it is important to measure the concentration of various constituents in the plant tissue. In a study of the reliability of such measurements, a batch of alfalfa was dried, ground, and passed through a fine screen. Five small (0.3 gm) aliquots of the alfalfa were then analyzed for their content of insoluble ash.6 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 the mean.

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