{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw11solution[1]

# hw11solution[1] - Homework 11 Solution Solutions to SAS...

This preview shows pages 1–3. Sign up to view the full content.

Homework 11 Solution Solutions to SAS Problems 1. The ANOVA Procedure Class Level Information Class Levels Values trt 4 control t15 t40 t50 Number of observations 20 The ANOVA Procedure Dependent Variable: time Sum of Source DF Squares Mean Square F Value Pr > F Model 3 146.9500000 48.9833333 12.72 0.0002 Error 16 61.6000000 3.8500000 Corrected Total 19 208.5500000 R-Square Coeff Var Root MSE time Mean 0.704627 11.78463 1.962142 16.65000 Source DF Anova SS Mean Square F Value Pr > F trt 3 146.9500000 48.9833333 12.72 0.0002 Reject Ho because p=0.0002 <0.05, the means are not all equal. Scheffe's Test for time NOTE: This test controls the Type I experimentwise error rate. Alpha 0.05 Error Degrees of Freedom 16 Error Mean Square 3.85 Critical Value of F 3.23887 Minimum Significant Difference 3.8683 Means with the same letter are not significantly different. Scheffe Grouping Mean N trt A 20.400 5 t15 B A 17.200 5 t40 B C 16.200 5 control C 12.800 5 t50 Pairwise comparisons: Control is different from t15. t15 is different from t50 and t40 is different from t50.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2. The ANOVA Procedure Class Level Information Class Levels Values trt 3 c t1 t2 Number of observations 18 Dependent Variable: symptoms Sum of Source DF Squares Mean Square F Value Pr > F Model 2 463.4444444 231.7222222 56.98 <.0001 Error 15 61.0000000 4.0666667 Corrected Total 17 524.4444444 R-Square Coeff Var Root MSE symptoms Mean 0.883686 19.30785 2.016598 10.44444 Source DF Anova SS Mean Square F Value Pr > F trt 2 463.4444444 231.7222222 56.98 <.0001 Reject Ho because p=0.0001 <0.05, the means are not all equal.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 8

hw11solution[1] - Homework 11 Solution Solutions to SAS...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online