of marginal significancep < .02
Again, virtually all the groups of dummy variables are significantly different from zero ( p < 0.01), the two of marginal significance being the estimated data dummies ( p < .02) and PPS quarter ( p < 0.11).
Again, virtually all the groups of dummy variables are significantly different from zero ( p < 0.01), the two of marginal significance being the estimated data dummies ( p < .02) and PPS quarter ( p < 0.11).