Using this data:

Multiple Comparisons

Dependent Variable:DyeStrength

Tukey HSD

(I) Color

(J) Color

Mean Difference (I-J)

Std. Error

Sig.

95% Confidence Interval

Lower Bound

Upper Bound

Blue

Green

35.200^*

1.661

.000

31.08

39.32

Yellow

20.700^*

1.661

.000

16.58

24.82

Green

Blue

-35.200^*

1.661

.000

-39.32

-31.08

Yellow

-14.500^*

1.661

.000

-18.62

-10.38

Yellow

Blue

-20.700^*

1.661

.000

-24.82

-16.58

Green

14.500^*

1.661

.000

10.38

18.62

*. The mean difference is significant at the 0.05 level.

Problem Set 4.7: Tukey HSD Interpretation

• Criterion: Interpret Tukey HSD results from SPSS output.
• Data: Use your output from Problem Set 4.10.
• Instruction: Identify where significant differences exist at the .05 level between your colors.

Feedback on incorrect answer below:

The criteria for this problem set requires addressing the results of the post hoc analysis. To do this, it is necessary to consider the purpose of post hoc testing, what the significance level means, and clearly and concisely report all of the information you are able to determine from this analysis. (Hint, there are a total of 3 things you should be reporting). Also, remember to distinguish between retaining and rejecting the null hypothesis.