The name is absent

differences in seasonal price patterns were, in pounds,
150-275, 276-375, 376-500, 501-600, 601-675, and
676-800.

The results of the analysis of со-variance for
these weight groups are presented in Table 2.
Differences in price attributable to auction location,
sex and weight group were each significant after
accounting for the Hnear regression effect of weight
on price. All interaction effects were also significant.

Numbers of observations, standard deviations in
price, average prices and average animal weights by
weight group for all animals, steers, and heifers are
presented in Table 3. Standard deviations in price
within weight groups were greater for steers than for
heifers throughout the 150-800-ρound weight range.
The standard deviation for heifers decHned
throughout the weight range; while for steers, it
decHned from 150-600 pounds, then increased. This
may indicate that quality (or grade) has a greater
effect on price of steers than heifers. It may also
imply that as the final grade of steers becomes more
predictable (weights greater than 600 pounds) quaHty
becomes a more influential factor in price
determination. Conclusive evidence of these
relationships cannot be determined specifica∏y from
the sample data. The absence of recorded grade

Table 3. AVERAGE PRICES AND WEIGHTS FOR SIX WEIGHT GROUPS FOR ALL ANIMALS, STEERS,
AND HEIFERS, FOUR LOUISIANA AUCTION MARKETS, JUNE 28,1970, THROUGH JUNE 27,
1972

162

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