Question: (a) Rework question 3a using the printout given below to answer the same question using a Wilcoxon Rank Sum test.

The SAS System 14:15 Saturday, March 8, 2008 26

The NPAR1WAY Procedure

Wilcoxon Scores (Rank Sums) for Variable BDISCHAR

Classified by Variable DI

Sum of Expected Std Dev Mean

DI N Scores Under H0 Under H0 Score

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0 32 847.50 768.0 43.503804 26.484375

1 15 280.50 360.0 43.503804 18.700000

Average scores were used for ties.

Wilcoxon Two-Sample Test

Statistic 280.5000

Normal Approximation

Z -1.8159

One-Sided Pr < Z 0.0347

Two-Sided Pr > |Z| 0.0694

t Approximation

One-Sided Pr < Z 0.0380

Two-Sided Pr > |Z| 0.0759

Z includes a continuity correction of 0.5.

Kruskal-Wallis Test

Chi-Square 3.3395

DF 1

Pr > Chi-Square 0.0676

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document