ch3measuresofvariability

076 48037 sigma the greek s sigma formula variance

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Unformatted text preview: noted by standard which [ σ σ = Variance = 23.076 = 4.8037 = sigma, the Greek “s”. ] sigma, Formula: σ = Variance = ( xi − µ ) 2 ∑ N →(1) Computer steps: Computer For Company A data ON MODE COMP (1) MODE SD (4) 15.2 M + 9.2 DT 6.7 DT 12.4 DT 20.5 DT 15.2 DT SHIFT S-SUM n (3) SHIFT EXE 1 SHIFT S-VAR 2 xσn (2) EXE 5 4.803748536 Interpretation: Interpretation The deviation is x1 − µ = 15.2 − 12.8 = 2.4 because Small 2.4<4.8037 Small 3.6<4.8037 x2 − µ = 9.2 − 12.8 = −3.6 x3 − µ = 6.7 − 12.8 = −6.1 Large 6.1>4.8037 x4 − µ = 12.4 − 12.8 = − 0.4 Small 0.4<4.8037 x5 − µ...
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