Question 241992: There are four McBurger restaurants in the Columbus, Georgia, area. The numbers of burgers sold at the respective restaurants for each of the last six weeks are shown below. At the .05 significance level, is there a difference in the mean number sold among the four restaurants, when the factor of week is considered?
Restaurant
Week Metro Interstate University River
1 124 160 320 190
2 234 220 340 230
3 430 290 290 240
4 105 245 310 170
5 240 205 280 180
6 310 260 270 205
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! There are four McBurger restaurants in the Columbus, Georgia, area. The numbers of burgers sold at the respective restaurants for each of the last six weeks are shown below. At the .05 significance level, is there a difference in the mean number sold among the four restaurants, when the factor of week is considered?
Restaurant
Week Metro Interstate University River
1 124 160 320 190
2 234 220 340 230
3 430 290 290 240
4 105 245 310 170
5 240 205 280 180
6 310 260 270 205
-----------------------------
Ho: The means are all equal
H1: At least one of the means is different.
-----------------------
I ran an ANOVA test on the 4 data sets and got the following results:
test stat: F = 2.3245,,,
p-value = 0.10567...
-----------------
Since the p-value is greater than 5%, do not reject Ho.
At the 5% significance level the means are all equal.
=======================================
Cheers,
Stan H.
|
|
|
