Display 6.21Scatter plots ofbrood counts versus concentrations with a LOESS
smooth superimposed
From Display 6.21, you can determine that there is no effect of nitrofenon the first
brood. There is little difference in any brood between the unexposed and lowest
concentration. However, the number of young produced in broods 2 and 3 and the total
number of young decrease at higher concentrations.
6.6 Case Study: Using the SG Procedures
Because these new SG procedures are sufficiently important tostatistical programmers
and data analysts, it is a worthwhile practice for you to produce graphs to explore ...
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