Question: Two ecologists interested in the effects of the gall fly Resseliella clavula on flower production in dogwood trees collected data between 1988 and 1991 on flower production on galled and un-galled twigs of the same tree (n=15 trees). It had been hypothesized that galled twigs might actually produce more flowers than un-galled twigs because if the twig survived galling apical dominance might be reduced, and galled twigs might therefore produce more daughter twigs than un-galled twigs. Flowers are produced on terminal buds of individual twigs, so if more daughter twigs are produced then flowering might increase on galled twigs in the years after they were galled. On each tree, galled and un-galled twigs were marked and data on the number of flowers produced were collected on these twigs for the following 4 years. The data files (inflor.txt or inflor.sav) contain the relevant data. Column 1 has the tree number, and column 2 is year 1 galled, column 3 is year 1 un-galled, column 4 is year 2 galled, column 5 is year 2 un-galled, etc. Analyze these data and examine the treatment means to test the hypothesis that galling results in higher flower production.