Tyrone is testing out dye strength after washing dyed fabric for his new fabric
ID: 3463619 • Letter: T
Question
Tyrone is testing out dye strength after washing dyed fabric for his new fabric line. He dyes his fabrics blue, green, and yellow and washes the fabric one time. The following are the dye strength results for 10 pieces of fabric in each color aftr one wash: (further below are the ANOVA outputs and questions).
Blue
Green
Yellow
98
55
66
96
53
71
92
57
73
92
60
71
88
52
76
86
54
72
89
62
74
92
53
69
94
54
68
90
65
70
a. State the null hypothesis
b. report your results in APA format (as you might see them reported in a journal article).
Blue
Green
Yellow
98
55
66
96
53
71
92
57
73
92
60
71
88
52
76
86
54
72
89
62
74
92
53
69
94
54
68
90
65
70
Explanation / Answer
1. The null hypothesis: There is no significant difference in the dye strengths on fabrics after washing.
2. The f-ratio value is 226.78502. The p-value is < .00001. The result is significant at p < .05.
APA style report: There was a significant difference in the dye strengths on fabrics after washing at the p<.05 level for the three conditions [F(2, 27) = 226.78, p < .00001].
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