Question

suppose in an industrial experiment an engineer is interested in how the mean absorption of moisture in concrete varies among 3 different concrete aggregates. The samples are exposed to moisture for 48 hours. it is decided that 6 samples are to be tested for each aggregate, requiring a total of 18 samples to be tested. the data are recorded in the following table. Results of one-way ANOVA show that at least two of the samples are significantly different (F(2,15)=10.96; p-value=0.001165). Perform pairwise comparisons using Tukey's procedure at level significance of 0.05. please hand or typed calculations.

data1	data2	data3
595	639	417
580	615	449
508	511	517
583	573	438
633	648	415
517	677	555

Answer 1