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    ÃøÁ¤ÀÇ ÃѺ¯µ¿·®, ÃøÁ¤½Ã½ºÅÛÀÇ º¯µ¿·®

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Nested : °¢°¢ÀÇ part¿¡ ´ëÇØ ÇÑ ¸íÀÇ ÃøÁ¤ÀÚ°¡ ÃøÁ¤ÇÑ °æ¿ì¿¡ Àû¿ë (ÆÄ±« °Ë»ç)

X bar - R : ºÎǰ°ú ÃøÁ¤ÀÚ°£ÀÇ ±³È£ ÀÛ¿ëÀÌ ¾ø´Ù°í °¡Á¤ÇÏ¿© ºÐ¼®(°íÀüÀû ¹æ¹ý)
ANOVA : ºÎǰ°ú ÃøÁ¤ÀÚ°£ÀÇ ±³È£ÀÛ¿ëÀÌ Á¸ÀçÇÏ´Â °æ¿ì

  1. DPU(Defects Per Unit) = ÃÑ °áÇÔ¼ö / ÃÑ ÃøÁ¤ ´ÜÀ§¼ö
  2. DPO(Defects Per Opportunity) = °áÇÔ¼ö / Àüü ±âȸ¼ö(TOP)
  3. DPMO(Defects Per Million Opportunities) = °áÇÔ¼ö / Àüü ±âȸ¼ö(TOP) * 1,000,000

±Í¹«°¡¼³ H0 : Çã¼ö¾Æºñ °¡¼³(straw man hypothesis) Á¶»çÇÏ¿¡ ÀÖ´Â ¸ð¼ö´Â ¸ðµÎ °°´Ù´Â ¶æ. ±× ¸ðÁý´Ü¿¡´Â Â÷À̰¡ ¾ø´Ù. Ç×»ó ¸ðÁý´Ü°ú sampleÀº °°´Ù¶ó°í °¡Á¤
´ë¸³°¡¼³ Ha : Ç×»ó ¸ðÁý´Ü°ú sampleÀº ´Ù¸£´Ù

  1. ±âÁØ È¤Àº ±â´ëÄ¡¿¡ ´ëºñÇÑ °è»êµÈ Ç¥ºÐ Æò±Õ °ËÁ¤(1-sample t-Test)
  2. ¼­·Î ´Ù¸¥ µÎ Ç¥º»Æò±ÕÄ¡ Â÷ÀÌ °ËÁ¤ (2 sample t-Test)

  1. One-way ANOVA
  2. Balanced ANOVA
  3. GLM(General Linear Model)

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