Question

A researcher is interested in comparing the effect of two types of herbacide on Russian knapweed. A large 65 hecture land area of public land in Montana with heavy infestation of Russian knapweed is chosen for the study. 10 1-acre plots are chosen at random from the 65 hecture land area. At random, 5 of these patches are treated with the first type of herbacide and 5 are treated with the second type of herbacide. A analysis is conducted to compare the different types of herbacides.

a. Clearly discuss in very specific terms the scope of statistical inference that can be made directly from the statistical analysis.

b. Assume that this study is being funded, in part, to help determine the best herbicide treatments for Russian knapweed in all of western Montana. Discuss the population scope of interest, and what must be argued to make a convincing case that the study results can be inferred onto this scope.

Answer 1

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