i (J,,U I+-1· I• B() GIA.O Dl)C VA HAO Ti;\O TRU(JNG Di;\1 IH)C lVI{)' TP.HCM KHOA LUAN TOT NGHIEP , G Ten tti tai: KHAO SAT MOT S6 TAC DUNG • • DlfOC TINH CiJA THAO DlfOC • • METHIAND0 •.:, KHOA CONG NGHE SINH HOC CHUYEN NGANH: CONG NGH� DU'(J'C PHAM CBHD: ThS LAO DUC THU�N SVTH: HO TH} HUYEN TRANG MSSV: 0953012750 KHOA: 2009 - 2013 Tp H8ChiMinh, tluing 05 niim 2013 :0-;·.·-�·-.::1 ··.:, _·_ , · ··· ·- _ _,. ._ _._ -·./ - 1- ,·- - - ·-·- •· - -; _.-.-.-. -· -l k··, • : · - )-.-:- ·.-:-, •_-.:._: - - - -.· • :-••- , 1_-::.:.-::: : :: ·- :: :.:: -• :-:.-. ·.j : - : I Phl} ll}.c 26 So sanh lmyng nmrc ti�u trung binh cua chu9t fr lo d6i chung dll'O'ng Multiple Range Tests for Iuong nuoc tieu by thoi gian -Method: 95,0 percent Duncan Homogeneous Groups Count Mean 60 0,5425 X 30 0,6125 xx 90 0,76 120 1,09 thoi gian X X -Contrast Difference 30- 60 0,01· 30- 90 -0,1475 30- 120 *-0,4775 60- 90 *-0,2175 60 - 120 *-0,5475 90- 120 *-0,33 -* C�p c6 Sµ' khac bi�t c6 y nghfa 89 -:.··-··-::c:··.1 ·-··.: · , · · : • - I : ·; �- ·.·.·-·-· ·· - • - "" -'.: ·.:: f