M ultiple R: He sd tuong quan boi cho thay trinh do chat che cua mdi lien he tuong quan boi (0< R < /) ,
R Square (R2) He so xac dinh: Cho biet bao nhieu phan tram sir bien dong cua bien phu thuoc duoc giai thfch boi cac bien doc lap da duoc bao g6m trong loai hinh.
O bservation: Sd don vi mSu duoc dua vao nghien curu.
F - stat: Tieu chuan F dung lam can cur de kiem djnh do tin cay ve mat khoa hoc (Thong ke) cua toan bo phuong trinh hdi quy. Bai toan du y nghla thong ke khi F > Fu.
Regression Coefficients (a, hoac bj): Cac he sd hoi quy a, ( i= l, 2,.. n ) noi len % thay doi cua Y khi X; tang them 1%, khi gia thiet cac yeu td khac khong doi, Do chfnh la do co dan cua san luong theo yeu td san xuat co he sd hoi quy a ;. Cac he sd hoi quy bj( j = 1,2 ..., m) noi len anh hudng cu the cua cac bien thuoc tmh khi no thuc sir say ra tren thuc te.
T - stat: Tieu chuan T dung lam can cu de kiem dinh do tin cay ve mat khoa hoc (thong ke) cua do co dan a; (i = 1 ,2 ,.. .n) tuc la mdi lien he giua Xj va Y.
P - Value: Xac suat de t > t-stat, dung de kiem djnh do tin cay ve mat khoa hoc (thong ke) cua do co dan a; (i = 1, 2, ... n) cua Y theo X j, hoac cua he s o h o i q u y b j (j = l,2 ,...m )
(1- P value) la do tin cay ve mat khoa hoc (thong ke) cua viec udc luong do co dan bieu hien mdi lien he cua Y theo Xj
Quy trinh udc luang ham san xuat CD bang phan mem EXCEL
Budc l: N h a p so lie u Y, X,...Xi...Xn
Budc 2: Tmh LnY, LnX,..., L n X ;..., LnXn
Budc 3: Chon Tools tren thanh Menu cua Worksheet
Budc 4: Chon Regression sau dd chon OK, hop thoai Regression se xuat hien
Budc 5: Trong hop thoai Regression: - Chon Input Range:
Input Y Range: khai bao vung d u lieu cho bien phu thuocY Input X Range: khai bao vung du lieu cho cac bien doc lap X