000 01483nab a22003017a 4500
001 G69650
003 MX-TxCIM
005 20230220214226.0
008 121211b |||p||p||||||| |z||| |
022 _a0006-341X
022 _a1541-0420
024 _2https://doi.org/10.2307/3001622
040 _aMX-TxCIM
041 _aeng
090 _aREP-666
100 1 _aGraybill, F.
_930067
245 1 0 _aVariance heterogeneity in a randomized block design
260 _c1954.
_aUnited Kingdom :
_bInternational Biometric Society,
340 _aPrinted
520 _aThe purpose of this paper is to give an exact criterion for testing whether all treatments are equal by a randomized block desing under the follwing conditions: 1.- The error variance differ from treatment to treatment. 2.- The error are correlated within a block but are independent from block to block- In a randomized block experiment when we are confronted with the problem of heterogeneous error variance or correlated erros, the ratio of the mean square for the treatments to the mean square for the error (obtained by pooling the sum of squares for error) is not distributed as Snedecor's F.
546 _aText in English
595 _aRPC
650 7 _2AGROVOC
_929994
_aRandomized block design
650 7 _2AGROVOC
_912144
_aTesting
650 7 _2AGROVOC
_91310
_aWheat
773 0 _tBiometrics
_gv. 10, no. 4, p. 516-520
_dUnited Kingdom : International Biometric Society, 1954.
_x0006-341X
942 _cJA
_2ddc
999 _c20261
_d20261