Use the technology of your choice to obtain the required Tukey multiple-comparison confidence intervals with a family confidence level of 0.95. Book Prices. The R.R. Bowker Company collects data on retail prices of books and periodicals. Information about book prices is published in Publishers Weekly and in Bowker Annual: Library and Book Trade Almanac. Independent random samples were taken to compare retail book prices for five subjects (art, law, medicine, science, and technology) and three years (1985, 1990, and 1995).  Obtained for a two-way ANOVA on these data and also supplies a table of cell and marginal means.

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