A Space Probe in Remote Outer Space Continues Moving

question 37

Multiple Choice

A space probe in remote outer space continues moving

• A)because some kind of force acts on it.
• B)in a curved path.
• C)even though no force acts on it.
• D)due to gravity.

Understand the impact of tied observations on the distribution of the Wilcoxon rank sum.

Interpret and calculate the expected value and standard deviation of the Wilcoxon rank sum test statistic under the null hypothesis.

Formulate null and alternative hypotheses for the Wilcoxon test based on the difference in medians.

Recognize the conditions under which to use nonparametric methods.