Which of the following describes a typical distribution of F-ratios? symmetrical with a mean of zero O positively skewed with all values greater than or equal to zero O negatively skewed with all values greater than or equal to zero O symmetrical with a mean equal to df-between

6 1/6 + 6

(NINETEEN)

Diagonalize the matrices in Exercises 7-20, if possible. The roul eigenvalues for Exercises 11-16 and 18 are included below the matrix.