Asked by Ahlam Zehdi on Jul 25, 2024
Verified
An agricultural researcher wishes to compare the yield of four different varieties of wheat.64 plots of land are available for an experiment.On each plot of land one of the varieties of wheat will be grown.At the end of the experiment the yield for the different varieties will be compared.32 of the plots are at one site (site
A)and the other 32 are at another site (site
B).The soil at site A differs significantly from the soil at site B.The researcher wishes to design an experiment.In this example,why might a randomized block design,with blocking by soil type,be preferable to a completely randomized design?
Randomized Block Design
A statistical experiment design that aims to reduce the effects of confounding variables by dividing subjects into blocks before randomly assigning treatments.
Soil Type
A classification of soil based on its physical and chemical properties, such as texture, structure, and nutrient content.
Wheat Varieties
Varieties of wheat distinct by their genetic makeup, growth habits, and physical characteristics, used for various wheat products.
- Discriminate among diverse experimental schemes (randomized, blocked, stratified) and their functions.
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Learning Objectives
- Discriminate among diverse experimental schemes (randomized, blocked, stratified) and their functions.
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