Question

Need help with this please.

Use the Wilcoxon rank sum test on the data below to determine at the 10% significance level whether the two population locations differ. Sample 1 32 22 19 29 20 34 25 9 28 17 Sample2 29 2018 27 1923 19 12 22 10 HO: the two population locations are the same Ha: the two population locations are different Test statistics 90.5 Critical Value 82 Conclusions: The two population locations are $

Answer 1

Here size of the sample 1 and sample 2 are equal i.e. n1=10 and n2= 10.

Critical value * = 0.1 two tailed test n = 10 n₂ =10 T= 83 and To = 127 we get the value Te and Tu from Wilcoxon Rank sum Test: Independent Samples Table] Ho TL=83 Now , Do not Reject Reject Ho Horta Reject to To 127 Looking Test statistic, we ean say that- not reject to the two population locations We can are same
Value 20 occures in 2 times, therefore its actual ranks are 9 and 10. So we average them (9+10)/2=9.5 as a rank of the value 20, similarly for others.