MINITAB calculation of balanced analysis of covariance We illustrate the MINTAB commands for Example 11 concerning surface reflectivity.

Use computer software to perform an analysis of covariance for the fitness wristband.

Data From Example 11

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Data: C1(Tr): 1 1 1 1 2 2 2 2 3 3 3 3 C2(x): 0.90 0.95 1.05 0.80 0.50 0.40 0.15 0.25 0.20 0.55 0.30 0.40 C3(y): 1.05 0.95 1.15 0.85 1.10 1.00 0.90 0.80 0.75 1.05 0.95 0.90 Dialog box: Stat> ANOVA > General Linear Model > Fit General Linear Model. Type y in Responses, Treatment in Factors and x in Covariates. Click OK.