The U-Plant’um Nursery must determine if there is a difference in the growth rate of saplings...

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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

  

                                               10                   8                     5                     7

                                               12                   15                   17                   14

                                               17                   16                   15                   15

Answer & Explanation Solved by verified expert
3.7 Ratings (671 Votes)
With the information provided we can now easily compute the sumof ranks for each of the samplesR1 4 5 115 205R2 3 8 10 21R3 1 8 115 205R4 2 6 8 161 Null and Alternative HypothesesThe following null    See Answer
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