QNT/351
Question 1
Last week we discussed the one sample hypothesis test. This week we will discuss ANOVA. The ANOVA allows us to test the mean between two or more groups.
Need assignment help for this question?
If you need assistance with writing your essay, we are ready to help you!
OUR PROCESS
Order
Payment
Writing
Delivery
Why Choose Us: Cost-efficiency, Plagiarism free, Money Back Guarantee, On-time Delivery, Total Сonfidentiality, 24/7 Support, 100% originality
Teachers Example, I have five pizza delivery areas and I want to know if the average sales per run is different in one area than any of the other areas.
H0: There is no significant difference in the sales per run between the delivery areas
H1: There is a significant difference in the sales per run between the delivery areas
Notice how the hypothesis is very simple. There is a difference or there is not a difference. Again, we will use MegaStat. You cannot calculate ANOVA by hand.
Just put your own sales for each area in a column and click the Megastat menu, select analysis of variance, and highlight your data and click enter. Check your p-value. Interpret.
Here is the teachers example :
Area 1 Area 2 Area 3 Area 4 Area 5
$ 45.00 $ 13.00 $ 12.00 $ 34.00 $ 37.00
$ 34.00 $ 24.00 $ 37.00 $ 25.00 $ 22.00
$ 36.00 $ 34.00 $ 27.00 $ 23.00 $ 32.00
$ 45.00 $ 23.00 $ 17.00 $ 36.00 $ 42.00
$ 53.00 $ 32.00 $ 28.00 $ 23.00 $ 35.00
$ 43.00 $ 21.00 $ 39.00 $ 35.00 $ 37.00
$ 45.00 $ 23.00 $ 35.00 $ 45.00 $ 28.00
$ 65.00 $ 24.00 $ 26.00 $ 34.00 $ 13.00
$ 32.00 $ 37.00 $ 45.00 $ 23.00 $ 24.00
$ 30.00 $ 45.00 $ 27.00 $ 53.00 $ 15.00
$ 40.00 $ 32.00 $ 34.00 $ 29.00 $ 63.00
$ 23.00 $ 34.00 $ 16.00 $ 28.00 $ 35.00
One factor ANOVA
Mean n Std. Dev
32.45 40.917 12 11.1719 Area 1
32.45 28.500 12 8.6707 Area 2
32.45 28.583 12 9.9951 Area 3
32.45 32.333 12 9.3355 Area 4
32.45 31.917 12 13.3448 Area 5
32.450 60 11.2347 Total
ANOVA table
Source SS df MS F p-value
Treatment 1,230.4333 4 307.60833 2.72 .0386
Error 6,216.4167 55 113.02576
Total 7,446.8500 59
The p-value is less than .05 so I do not reject the null
