Question

Table 5

The following information is available for two samples selected from independent and similarly shaped rightskewed populations:

Sample 1: n1 = 5, 1.1 2.3 2.9 3.6 14.7

Sample 2: n2 = 6, 2.8 4.4 4.4 5.2 6.0 18.5

Assuming this is a two-tail test.

1. Referring to table 5, the null hypothesis that should be used is _____.

2. The rank given to the last observation in sample 1 (14.7) is _______.

1. 10

2. 8

3. 9

4. 11

     C. At the level of 0.05 level of significance, determine the critical values for the Wilcoxon rank sum test statistic.

1. 12, 28

2. 16, 44

3. 20, 40

4. 18, 42

Answer 1