A sample of 188 students were asked how many cups of coffee they drink per day. A density plot of the results is shown in the figure.

What method would you use to test the hypothesis that there is no difference in the number of cups of coffee consumed each day between undergraduate and postgraduate students?

Question

A sample of 188 students were asked how many cups of coffee they drink per day. A density plot of the results is shown in the figure.

What method would you use to test the hypothesis that there is no difference in the number of cups of coffee consumed each day between undergraduate and postgraduate students?

Answer

Spearman rank correlation

Answer

Conduct an independent samples t-test analysing the number of cups of coffee consumed

Answer

Wilcoxon rank-sum test (Mann-Whitney U test)

Answer

Wilcoxon matched-pairs sign-rank test

Crowdly

A sample of 188 students were asked how many cups of coffee they drink per day. ...

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