# One Factor ANOVA

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Three different IR Sensors were tested to determine differences in maximum detection range against a common target.

a. Using ANOVA, test the null hypothesis that there was no significant difference between IR Sensor detection ranges at alpha = 0.05 level of significance.

IR SENSORS (aj) (1000 yds)

Sensor A (a1) Sensor B (a2) Sensor C (a3)

12 9 7

9 11 9

11 8 6

0 8 6

32 36 28

b. Estimate the parameters: overall mean (u), and factors a1, a2, a3

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This solution gives the step by step method for one way ANOVA.

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