ShopEasy Inc $\alpha$ = 005, the Critical F Value Is ___

Multiple Choice

ShopEasy Inc.is a specialty e-tailer that operates 87 catalogue websites on the Internet.Larson Brown, Sales Director, feels that the style (colour scheme, graphics, fonts, etc.) of a website may affect its sales.He chooses three levels of design style (neon, old world and sophisticated) and randomly assigns six catalogue websites to each design style.Analysis of Larson's data yielded the following ANOVA table: Using $\alpha$ = 0.05, the critical F value is ___.

A) 3.57
B) 19.43
C) 3.68
D) 19.45
E) 2.85