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

question 51

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 ?

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Definitions:

Skewed

A distribution that is not symmetrical around its central value, indicating that the data points tend to be more spread out on one side of the scale.

Student t

A distribution that is used in hypothesis testing, especially for small sample sizes, when the population standard deviation is unknown.

χ

This commonly represents the Greek letter chi, which can denote a variable, statistic, or characteristic in various scientific fields. Without further context, a specific definition cannot be provided.

Negative Values

Numbers that are less than zero, often representing a deficit or decrease in mathematical calculations or data sets.