Attitude Test Narrative Twenty Students Are Given an Attitude Test Before and After

Essay

Attitude Test Narrative
Twenty students are given an attitude test before and after viewing a motion picture designed to change their attitudes favourably toward a new curriculum. A high score indicates a favourable attitude and a low score indicates an unfavourable attitude, with the scores ranging from 1 to 30. This will use the sign test on the data given below to see if we can conclude the motion picture was successful in improving attitudes.
-Refer to Attitude Test Narrative. Describe what the test statistic is for the Wilcoxon signed-rank test. What is the value of the test statistic in this ?