BMS2024:Wilcoxon Rank-Class exercise

What is the type of hypothesis test for this problem?

• Two tailed test

• Right-tailed test

• Left-tailed test

Which group should be labelled as Group 1?

• Bob's Portfolio

• Tom's Portfolio

At alpha 0.05, what is the critical value?

•  $\pm1.28$  

•  $\pm1.96$  

•  $+1.645$  

What is the value of sum of rank; T1?

• 135

• 118

• 115

What is the test statistic value?

• +2.55

• -1.32

• +1.32

What is the decision of this test?

• Reject H0

• Do not reject H0

What the conclusion can be made for this test?

• The medians of the stocks value are the same

• There is significant difference in the medians of the stocks values