สำมะโนธุรกิจและอุตสาหกรรม พ.ศ.2565 ธุรกิจทางการค้าและธุรกิจทางการบริการ กรุงเทพมหานคร

5 . The estimation of variance of estimated total The estimated variance of the estimated total number of the characteristic X of the establishments with 1 - 10 persons engaged ( p = 1,2 ) , ℎ activity, ℎ class, ℎ group, ℎ division, ℎ ℎ region was based on the formula : ̂ ( ̂ hjklmp , ) = ∑ ̂ ( ̂ hijklmp , ) ℎ =1 where V̂ (X̂ ' hijklmp ) is The estimated variance of the estimated total number of the characteristic X of the establishments for ℎ sub - size, ℎ activity, ℎ class, ℎ group, ℎ division, ℎ province, ℎ ℎ region where ̂ ( ̂ hijklmp , ) = N hijklmp ′ (N hijklmp ′ − n hijklmp ′ ) S hijklmp 2 n hijklmp ′ and S hijklmp 2 = 1 n hijklmp ′ −1 [ ∑ x hijklmp 2 − n hijklmp ′ =1 (∑ ℎ n hijklmp ′ =1 ) 2 n hijklmp ′ ] 6 . The estimation of coefficient of estimated variation of estimated total The estimated coefficient of estimated variance of estimated total number of the characteristic X of the establishments with 1 - 10 persons engaged ( p = 1,2 ) , ℎ activity, ℎ class, ℎ group, ℎ division, ℎ ℎ region was based on the formula : ( ̂ ′ ℎ ) = √ ( ̂ ′ ℎ ) ̂ ′ ℎ ------------------------------------------------------------------ 122