{"id":34311,"date":"2023-12-08T03:56:45","date_gmt":"2023-12-08T03:56:45","guid":{"rendered":"https:\/\/masterskills.org\/blog\/chon-mau-theo-thuoc-tinh-attribute-sampling-la-gi-su-dung-nhu-the-nao.html"},"modified":"2023-12-23T20:56:44","modified_gmt":"2023-12-23T13:56:44","slug":"chon-mau-theo-thuoc-tinh-attribute-sampling-la-gi-su-dung-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/chon-mau-theo-thuoc-tinh-attribute-sampling-la-gi-su-dung-nhu-the-nao.html","title":{"rendered":"Ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh (Attribute Sampling) l\u00e0 g\u00ec? S\u1eed d\u1ee5ng nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"
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\n<\/figcaption><\/figure>\n

Ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh<\/font><\/h2>\n

Kh\u00e1i ni\u1ec7m<\/b><\/p>\n

Ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh<\/b> trong ti\u1ebfng Anh l\u00e0 Attribute Sampling<\/b>.<\/p>\n

Ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh<\/b> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c qui tr\u00ecnh ki\u1ec3m to\u00e1n nh\u1eb1m ph\u00e2n t\u00edch c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ed9t t\u1eadp h\u1ee3p nh\u1ea5t \u0111\u1ecbnh.\u00a0<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra xem c\u00e1c ho\u1ea1t \u0111\u1ed9ng\u00a0ki\u1ec3m so\u00e1t n\u1ed9i b\u1ed9\u00a0trong c\u00f4ng ty c\u00f3 \u0111\u01b0\u1ee3c tu\u00e2n th\u1ee7 ch\u00ednh x\u00e1c hay kh\u00f4ng. N\u1ebfu kh\u00f4ng d\u1ef1a v\u00e0o c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t, s\u1ebd r\u1ea5t kh\u00f3 kh\u0103n v\u00e0 t\u1ed1n k\u00e9m \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t cu\u1ed9c ki\u1ec3m to\u00e1n c\u00f3 \u00fd ngh\u0129a.\u00a0<\/p>\n

S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh\u00a0<\/font><\/h3>\n

Gi\u1ea3 s\u1eed, c\u00f4ng ty c\u00f3 m\u1ed9t qui t\u1eafc r\u1eb1ng c\u00e1c giao d\u1ecbch tr\u1ecb gi\u00e1 h\u01a1n 10$ ph\u1ea3i \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n k\u00e8m theo m\u1ed9t l\u1ec7nh mua h\u00e0ng, ki\u1ec3m to\u00e1n vi\u00ean mu\u1ed1n ki\u1ec3m tra t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3. Tuy nhi\u00ean vi\u1ec7c ki\u1ec3m tra m\u1ecdi h\u00f3a \u0111\u01a1n t\u1eeb nh\u00e0 cung c\u1ea5p th\u01b0\u1eddng kh\u00f4ng kh\u1ea3 thi n\u00ean ki\u1ec3m to\u00e1n vi\u00ean s\u1ebd l\u1ea5y m\u1ed9t m\u1eabu.<\/p>\n

K\u00edch th\u01b0\u1edbc c\u1ee7a m\u1eabu ph\u1ea3i \u0111\u1ee7 l\u1edbn \u0111\u1ec3 cung c\u1ea5p m\u1ed9t b\u1ee9c tranh ch\u00ednh x\u00e1c v\u1ec1 t\u1eadp h\u1ee3p c\u00e1c \u0111\u01a1n \u0111\u1eb7t h\u00e0ng tr\u00ean 10$. M\u1eb7c d\u00f9 s\u1ef1 ch\u00ednh x\u00e1c \u0111\u00f3 lu\u00f4n l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1ee9c \u0111\u1ed9 v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra. Khi ki\u1ec3m tra m\u1eabu, ki\u1ec3m to\u00e1n vi\u00ean c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra 5% h\u00f3a \u0111\u01a1n tr\u00ean 10$ c\u1ee7a nh\u00e0 cung c\u1ea5p kh\u00f4ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n b\u1edfi l\u1ec7nh \u0111\u1eb7t h\u00e0ng.\u00a0<\/p>\n

M\u1eb7t kh\u00e1c, m\u1ee9c 5% n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. Do ki\u1ec3m to\u00e1n vi\u00ean \u0111\u00e3 l\u1ea5y m\u1ed9t m\u1eabu v\u00e0 kh\u00f4ng th\u1ec3 ki\u1ec3m tra to\u00e0n b\u1ed9 t\u1eadp h\u1ee3p c\u00e1c nh\u00e0 cung c\u1ea5p, n\u00ean h\u1ecd ph\u1ea3i ph\u00e2n t\u00edch b\u1ed5 sung v\u00ec b\u1ea5t c\u1ee9 khi n\u00e0o m\u1eabu \u0111\u01b0\u1ee3c l\u1ea5y, hi\u1ec7n t\u01b0\u1ee3ng sai s\u1ed1 khi l\u1ea5y m\u1eabu c\u0169ng x\u1ea3y ra.\u00a0<\/p>\n

M\u1ed9t sai s\u1ed1 l\u1ea5y m\u1eabu x\u1ea3y ra khi c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a m\u1eabu kh\u00f4ng kh\u1edbp v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a to\u00e0n b\u1ed9 t\u1eadp h\u1ee3p m\u00e0 m\u1eabu \u0111\u01b0\u1ee3c l\u1ea5y ra. V\u00ec v\u1eady, n\u1ebfu ph\u00e2n t\u00edch b\u1ed5 sung cho th\u1ea5y t\u1ec9 l\u1ec7 sai s\u00f3t l\u00e0 2,5%, th\u00ec t\u1ec9 l\u1ec7 kh\u00f4ng tu\u00e2n th\u1ee7 5% s\u1ebd \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn v\u00ec kho\u1ea3ng tin c\u1eady l\u00e0 5%.\u00a0Sau \u0111\u00f3, c\u1ed9ng ho\u1eb7c tr\u1eeb 2,5% v\u00e0 t\u1ec9 l\u1ec7 3% r\u01a1i v\u00e0o ph\u1ea1m vi \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.\u00a0<\/p>\n

T\u1ec9 l\u1ec7 kh\u00f4ng tu\u00e2n th\u1ee7 5% n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn ho\u1eb7c kh\u00f4ng, t\u00f9y thu\u1ed9c v\u00e0o con s\u1ed1 m\u00e0 ki\u1ec3m to\u00e1n \u0111\u00e3 x\u00e1c \u0111\u1ecbnh l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. N\u1ebfu ki\u1ec3m to\u00e1n vi\u00ean tin r\u1eb1ng t\u1ec9 l\u1ec7 3% l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c th\u00ec 5% c\u00f3 v\u1ebb qu\u00e1 cao v\u00e0 cho th\u1ea5y c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t n\u1ed9i b\u1ed9 c\u1ee7a c\u00f4ng ty kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n

Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, vi\u1ec7c \u0111i\u1ec1u tra b\u1ed5 sung c\u1ee7a ki\u1ec3m to\u00e1n vi\u00ean l\u00e0 c\u1ea7n thi\u1ebft. D\u1eef li\u1ec7u n\u00e0y c\u0169ng c\u00f3 th\u1ec3 g\u1ee3i \u00fd r\u1eb1ng trong t\u01b0\u01a1ng lai, c\u1ea7n b\u1ed5 sung th\u00eam m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ki\u1ec3m so\u00e1t.<\/p>\n

Xem x\u00e9t m\u1ed9t cu\u1ed9c th\u0103m d\u00f2 b\u1ea7u c\u1eed, trong \u0111\u00f3 d\u1eef li\u1ec7u m\u1eabu cho th\u1ea5y 49% nh\u1eefng ng\u01b0\u1eddi \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t n\u00f3i r\u1eb1ng h\u1ecd d\u1ef1 \u0111\u1ecbnh b\u1ecf phi\u1ebfu cho \u1ee9ng c\u1eed vi\u00ean A v\u00e0 51% d\u1ef1 \u0111\u1ecbnh b\u1ecf phi\u1ebfu cho \u1ee9ng c\u1eed vi\u00ean B. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, t\u1ec9 l\u1ec7 sai s\u00f3t khi l\u1ea5y m\u1eabu l\u00e0 2,5%, l\u1edbn h\u01a1n ch\u00eanh l\u1ec7ch 2% (51% – 49%) gi\u1eefa c\u00e1c s\u1ed1 li\u1ec7u. \u0110i\u1ec1u n\u00e0y s\u1ebd cho t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a k\u1ebft qu\u1ea3 th\u0103m d\u00f2 \u00fd ki\u1ebfn.\u00a0<\/p>\n

C\u00e1c lo\u1ea1i c\u00e2u h\u1ecfi th\u01b0\u1eddng \u0111\u01b0\u1ee3c h\u1ecfi trong khi ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh<\/b><\/p>\n

Nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi ti\u00eau bi\u1ec3u:<\/p>\n

– C\u00e1c l\u00f4 h\u00e0ng c\u00f3 lu\u00f4n lu\u00f4n \u0111\u1ebfn tr\u01b0\u1edbc khi thanh to\u00e1n?<\/p>\n

– H\u00e0ng h\u00f3a ch\u1ec9 \u0111\u01b0\u1ee3c mua t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t?<\/p>\n

– C\u00f3 ph\u1ea3i t\u1ea5t c\u1ea3 s\u00e9c \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u00ed b\u1edfi m\u1ed9t ng\u01b0\u1eddi c\u00f3 th\u1ea9m quy\u1ec1n?<\/p>\n

(Theo Investopedia<\/i>)<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\n Ch\u1ecdn m\u1eabu theo thu\u1ed9c t\u00ednh (ti\u1ebfng Anh: Attribute Sampling) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c qui tr\u00ecnh ki\u1ec3m to\u00e1n nh\u1eb1m ph\u00e2n t\u00edch c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ed9t t\u1eadp h\u1ee3p nh\u1ea5t \u0111\u1ecbnh.\n <\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[419],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34311"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=34311"}],"version-history":[{"count":1,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34311\/revisions"}],"predecessor-version":[{"id":67958,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34311\/revisions\/67958"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=34311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=34311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=34311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}