This is a method of testing the significance of regression.The regression slopes of two dependent variables can be compared by F-test

Mullainadhan, P

Paulraj, S

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f M '•• CMFRI SPECIAL PUBLICATION N u m b e r 7 MANUAL OF RESEARCH MiiTHODS FOR CRUSTACEAN BIOCHEMISTRY AND PHYSIOLOGY ISSIH;( ! on Hie occas ion of the W o t k s h o p ott C R U S T A C E A N BIOOHfcMISTHY A N D P H Y S I O L O G Y jo in t ly ocyriiHseil by the Depar tment <sf Zoo logy , Oniv<-r, i iy of Madras .mi l the Contra of Advanced Stud ies so Mar ioul t tm-, Central Marine f i sher ies li.-s^at,. h iushf t t tc , held at Madras. f rom 8 •• 20 J tin- 1 **tt1 ICAT %»o s^v MANUAL OF RESfARI CRUSTACEAN BIOCHEMI! THODS FOR D PHYSIOLOGY Workshop on IIOCHEMISTRY AND PHYSIOLOGY •eparSrient of$o3#j iyJktvers i ty of Madras and Cefliiji of Adv«ri<f»d«udies in Mariculture, intraf llarfne Fish#fMWRese,jrch Institute, held at tAadtg*Ji&tn\- 20 June 1981 Manual dfRp^rch Methods for !( ^Crustacea* ^chmmtt^md Physiology , EDITED BY Mr H. RAVINDRANATH *cAtw/ <r/ tmkabbhgy, Department ofZoabgy, University of Madras, Maims 600 005 CMFRI SPECIAL PUBLICATION 'f ISSUED ON TOT OCCASIDH OJP TUB WORKSHOP ON BIOCHEMISTRY AlfO ^fBJJflQM^^MlMlMfc. DEPARTMENT 0*"gj£ioi]M' ""• CENTRE OP ADVAJfeWv^taK^r'tw'' MARINE FISHERIES RESeAROH INSTITUTE U M t ^ ',7' *"'*1&% J^ (LIMITED DISTRIBUTION) Published by : E. G. SILAS Director Central Marine Fisheries Research Institute I Cochin 682018 I PRINTED IN INDIA i : AT THE DIOCESAN PRESS, MADRAS 6 0 0 0 0 7 — 1 9 8 1 . C 2 3 7 5 . TESTS OF SIGNIFICANCE FOR REGRESSIONS * 25.1. ' t ' REGRESSION This is a method of testing the significance of regression. Here we test whether the estimated value of slope (b) significantly deviates from zero. The * t ' is calculated by the following formula. ^ - J M t = b Sd* 25.2. ' F ' REGRESSION The regression slopes of two dependent variables can be compared by F-test. The test for, the diiference (d) between two regression coefficients is given by the formula. bx- ba si si + -, ( S *i) a 2 ( 2 x . ) » * Prepared by S. Paulraj & P. Mullainadhan, School of Pathobiology, Department of Zoology, University of Madras, Madras-600 005. 165 For your own notes 167 Bar yotifown: flOtel. 168 

Tests of significance for regressions

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Tests of significance for regressions

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