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MASS. EXPERIMENT STATION BULLETIN No. 282 



Table 12. — Correlation of Price and External Quality Factors Minus Weight 



The November measures are statistically nonsignificant, partially due to the 

 small number of samples for that month. Because of the insignificance of the 

 coefficients obtained for this month there will be no further discussion of the 

 November measures in regard to external factors. 



Range in Weight 



Range in weight, as explained above, refers to the lack of uniformity of egg 

 size within each dozen. The lack of significance in the regression coefficients 

 leads to the conclusion that the variation in the size of eggs within each dozen 

 has little or no effect on price. 



Number of Eggs Off Color 



The effect of off-color eggs on price was more important than weight varia- 

 tion. For each egg off color the reduction of price in April for all eggs was nearly 

 .5 of a cent. In private stores this amount was .4 of a cent but only .25 of a cent 

 for chain-store and western eggs. 



In August the reduction in price for each egg of different color was nearly 

 .5 of a cent. The reduction was highest in private stores and for eastern eggs. 

 These losses were slightly over .5 of a cent in either case. Among chain-store 

 and western eggs the loss was less than .25 of a cent for each off-color egg. 



Dirty Eggs 



The significance of dirty eggs as an influence on price was very similar to that 

 of off-color eggs. The reduction in price for each dirty egg in April was from .45 

 to .50 of a cent except in the case of eastern eggs. 



