Learning Materials
Features
Discover
Chapter 13: Q.5 (page 764)
There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test.
Write the final assumption.
The fifth or final assumption for one-way
ANOVA is that the 'The response is a numerical variable'.
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
Are the means for the final exams the same for all statistics class delivery types? Table 13.25 shows the scores on final exams from several randomly selected classes that used the different delivery types
Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of .
There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test.
When do you use an ANOVA test?
As part of an experiment to see how different types of soil cover would affect slicing tomato production, Marist College students grew tomato plants under different soil cover conditions. Groups of three plants each had one of the following treatments
• bare soil
• a commercial ground cover
• black plastic
• straw
• compost
All plants grew under the same conditions and were the same variety. Students recorded the weight (in grams) of tomatoes produced by each of the plants:
| Bare: | Ground cover: | Plastic: | Straw: | Compost: |
| 2625 | 5348 | 6583 | 7285 | 6277 |
| 2997 | 5682 | 8560 | 6897 | 7818 |
| 4915 | 5482 | 3830 | 9230 | 8677 |
Create one-way ANOVA table
Two coworkers commute from the same building. They are interested in whether or not there is any variation in the time it takes them to drive to work. They each record their times for commutes. The first worker’s times have a variance of . These coworkers' times have a variance of . The first worker thinks that he is more consistent with his commute times. Test the claim at the % level. Assume that commute times are normally distributed. What is n?
What is ?
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Exams 
GCSE 
IGCSE 
AS 
A Level 
International A Level 
University Admissions Tests 
Flashcards 
Vaia AI 
Notes 
Study Plans 
Study Sets 
Find a job 
Find a degree 
Student Deals 
Magazine 
Mobile App