Anova table Solutiona Sum of squaresnxu2 Mean squares Sum of

Anova table

Solution

a) Sum of squares=n(xu)²

Mean squares= Sum of Squares/d.f.

d.f. = n-1

Where n is number of groups or total number of samples

x is sample value,

u is mean of that group

b) Critical value for Significance level of 5% = 3.8853,

So calculated value is greater then critical value the we can safely assume that mean of three group are unequal

  Source of Variation  

  Sum of Squares  

  d.f.  

  Mean Squares  

   F  

  Between  

  570  

  2      

  285  

  51.82  

  Error  

  66  

  12  

  5.5  

  Total  

  636  

  14