Statistical Analysis

Statistical Analysis

Quiz 6

Omega Square

This test is used to estimate the dependent variance accounted for by the independent variable in the target population. The test is uses to estimate dependent variance for a fixed effects model. The omega square is symbolized as w2.

Omega Square For Type of Infection

w2 = (SSeffect - (dfeffect)(MSerror)) / MSerror + SStotal

= 2413.556 - (2) (84.843) / 84.843+5240.528

= 2243.87/ 5325.371

= 0.421

SS total

SSE= SSt-SSA-SSb

SSE+SSA+SSB =SST

2290.75+2413.556+536.222= SST

SST=5240.528

Omega Square for Time

w2 = (536.222-(2) (84.843)) / 84.843 + 5240.528

= 366.536 / 5325.371

= 0.0688

Omega Square for Time * Type

w2 = (2194.444 - (4) (84.843)) / 84.843 + 5240.528

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