Sum of squares and degrees of freedom

Reference no: EM1397572

A researcher wanted to invetigate whether there is a significant difference in the average age of instructors, assistant professors, assocated professors and full professors at a university. The faculty was selected at random and their ages were recorded. Use the collected data to complete the Anova chart given below.

Instructors Asst. Professors Assoc. Professors Professors

26 28 45 58

32 32 48 56

29 36 52 62

36 45 54 65

40 50 62 52

45 46 65 49

ANOVA Summary

Source of Sum of Degrees Variation F Value F Critical

Variation Squares of freedom

Between-Groups 3 12.88 3.10

Within-Groups 1120.17

(Need Sum of Squares and Degrees of freedom for Between Groups and Degrees of freedom and Variation for Within-Groups

Reference no: EM1397572

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