Use the Mann-Whitney Table to Find the Critical Values - $\mathrm { n } _ { 1 } = 8 , \mathrm { n } _ { 2 } = 4$

question 15

Multiple Choice

Use the Mann-Whitney Table to find the critical values. For a left-tailed or two-tailed test, you will also need the relation
$\mathrm { M } _ { 1 - \mathrm { A } } = \mathrm { n } _ { \mathbf { 1 } } \left( \mathrm { n } _ { 1 } + \mathrm { n } _ { 2 } + 1 \right) - \mathrm { M } _ { \mathrm { A } } \text {. }$
- $\mathrm { n } _ { 1 } = 8 , \mathrm { n } _ { 2 } = 4$ , significance level $= 0.01$ , two-tailed test

• A)39,65
• B) 12,40
• C) 38,66
• D) 40,64

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