Purchase Solution

# Reaction times of assembly line workers: Kruskal-Wallis Test

Not what you're looking for?

An industrial psychologist wants to test whether the reaction times of assembly line workers are equivalent under three different learning methods. From a group of 25 new employees, 9 are randomly assigned to method A, 8 to method B and 8 to method C. After the learning period the workers are given a task to complete, and their reaction times are measured as shown in the table below. What is the appropriate test statistic to use for measuring whether there is a significant difference between the median reaction times for these learning methods at a significance level of 0.01?

METHOD
A B C
2 1 5
3 6 7
4 8 11
9 15 12
10 16 13
14 17 18
19 21 24
20 22 25
23

A. X2 = 9.210
B. X2 = 5.991
C. H = 0.12
D. H = 0.64

##### Solution Summary

Reaction times of assembly line workers: Kruskal-Wallis Test.

##### Solution Preview

D. H = 0.64

Details

Kruskal-Wallis Test: Time versus Method

Kruskal-Wallis Test on ...

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.