The U-Plant’um Nursery must determine if there is a differencein the growth rate of saplings that have been treated with fourdifferent chemical formulas. The resulting growth rates over agiven period are shown here. Does a difference appear to exist inthe growth factor of the formulas? Set alpha = 0.01.
                                                                       FORMULA
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                                               10                   8                     5                     7
                                               12                   15                   17                   14
                                               17                   16                   15                   15