Question: Is there a significant interaction between supplier and shift in Table 15.5.4? Justify and interpret your answer. TABLE 15.5.4 Average Quality Scores and ANOVA Table

Is there a significant interaction between supplier and shift in Table 15.5.4? Justify and interpret your answer.

TABLE 15.5.4 Average Quality Scores and ANOVA Table Supplier A Supplier B Supplier C Average Analysis of Variance for Quality Day Shift 77.06 81.14 82.02 80.08 Night Shift 93.12 88.13 81.18 8748 Swing Shift 77.06 78.11 79.91 78.36 Average 82.42 8246 81.04 81.97 DF MS shift supplier shift supplier Error Total 2 4. 36 704.07 19.60 430.75 1062.05 2216.47 352.04 9.80 107.69 29.50 11.93 0.33 3.65 0.000 0.720 0.014

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