You are hired by a sales company to research which advertising techniques are most effective in selling cars. In El Cajon they are using radio ads, in Mira Mesa they are using posters, in Chula Vista...

You are hired by a sales company to research which advertising techniques are most effective in selling cars. In El Cajon they are using radio ads, in Mira Mesa they are using posters, in Chula Vista they are using TV ads, and in Mission Beach they are using Facebook.
Conduct a one-way ANOVA to determine if there are significant differences in the mean number of cars sold using the different ad techniques.
Radio      Posters     TV     Facebook
3                5             8            8
3                3             5            9
4                5             8            7
6                7             9           10
6                8             8           10
8                8            10          10

caluculate:

Effect size:

Post Hoc Test: