The compressive strength of concrete is being studied, and four different mixing techniques are being investigated. Using the data gathered below:
a. Construct the ANOVA table
b. Test the hypothesis that mixing techniques affect the strength of the concrete. Use alpha = 0.01
Extracted text: Mixing Compressive Strength (psi) Technique 1 2 4 1 7 8 15 11 2 12 17 13 18 14 18 19 17 4 19 25 22 23 3.
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