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Spc xs resuelto - licmata

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SPC CEP Grafico de control medias y desviacion estandar

SPC CEP Grafico de control medias y desviacion estandar

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  • 1. Gráfica de medias y desviación estándar x-s G. Edgar Mata Ortiz Límites de control para la media aritmética Límites de control para la desviación estándar LCL = 108.805 CL = 134.100 UCL = 159.395 LCL = 0 CL = 17.726 UCL = 37.030 170 NR3. Six (or more) NR5. Two or three out of three points in a row are points in a row are more than 2 160 SD form the mean in the same continually increasing or decreasing direction (WE 2) Gráfico de medias 150 140 130 120 110 100 NR4. Fourteen (or NR1. One point is NR1. One point is more) points in a row more than 3 standard 50 more than 3 alternate in direction, devitions from the standard devitions increasing then from the mean Gráfico de desv. estándar 40 30 20 10 0 Datos 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 x1 103 147 143 122 88 152 153 152 89 95 138 106 122 105 166 151 159 125 125 145 x2 107 145 167 165 149 143 165 128 117 98 155 112 109 125 179 204 132 133 115 144 x3 140 148 121 145 128 154 75 136 123 131 169 121 157 110 153 139 152 131 93 150 x4 118 109 156 127 128 170 155 108 132 90 152 155 89 110 139 138 175 164 108 145 x5 158 131 104 152 148 147 132 135 153 92 102 118 94 90 154 149 168 161 147 153 S 626 680 691 711 641 766 680 659 614 506 716 612 571 540 791 781 786 714 588 737 x 125.2 136 138.2 142.2 128.2 153.2 136 131.8 122.8 101.2 143.2 122.4 114.2 108 158.2 156.2 157.2 142.8 117.6 147.4 s 20.837 14.832 22.956 15.892 22.094 9.239 32.336 14.26 20.846 15.145 22.833 17.095 24.343 11.225 13.467 24.457 14.824 16.327 18.018 3.4986licmata@hotmail.com http://licmata-math.blogspot.mx/ http://www.slideshare.net/licmata/

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