Applications 30. A mail-order catalog firm designed a factorial experiment to test the effect of the size of a magazine advertisement and the advertisement design on the number of catalog requests received (data in thousands). Three advertising designs and two different size advertise- ments were considered. The data obtained follow. Use the ANOVA procedure for facto- rial designs to test for any significant effects due to type of design, size of advertisement, or interaction. Use a = .05.

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