2. A study compared the impact of pollution on two different rivers by measuring the diversity of species in each river’s floodplain. The researchers randomly selected seven 20×20 meter plots along each river and recorded the total number of species of plants in each plot. Their results are below:
Red River 18 20 12 16 26 23 35 Brazos River 17 4 21 12 6 8 9
Carry out the appropriate test to determine if the number of plant species differs in the floodplains of these two rivers. Include all steps for full credit. (5pt)
Round all answers to 3 decimal places and assume ?=0.05 unless otherwise noted.
please be as detailed as you can.
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