An agricultural experiment considered the effects of K2O (potash) on the breaking strength of cotton fibers. Five K2O levels were used (36, 54, 72, 108, 144 lbs/acre). A sample of cotton was taken...

An agricultural experiment considered the effects of K2O (potash) on the breaking strength of cotton fibers. Five K2O levels were used (36, 54, 72, 108, 144 lbs/acre). A sample of cotton was taken from each plot, and a strength measurement was taken.

a. Complete the ANOVA table

b. Test if there is difference between the mean strength based on Potash levels.

Extracted text: K2O Ibs/acre Cotton Sample 36 54 72 108 144 1 7.62 8.14 7.76 7.17 7.46 8.00 8.15 7.73 7.57 7.68 3 7.93 7.87 7.74 7.80 7.21 2.