PartA What is the null hypothesis for this experiment? See Section 54.3 (Page 11
ID: 262093 • Letter: P
Question
PartA What is the null hypothesis for this experiment? See Section 54.3 (Page 1153 RESEARCH QUESTION: Do high species richness and high functional diversity of species increase aspects of ecosystem function such as net primary productivity (NPP)? HYPOTHESIS: NPP increases with increasing species richness and with increasing functional diversity of species. NULL HYPOTHESIS: EXPERIMENTAL SETUP: Plant a total of 289 experimental plots, each with up to 32 species and up to 5 functional groups: Cool-season grasses: Grow in spring Warm-season grasses: Grow in summe Legumes: Fix nitrogen Woody plants: Trees, shrubs Forbs: Lots of seeds Examples of experimental plots: 1 species 1 functional group 2 species 1 functional group 6 species 4 functional groups PREDICTION: PREDICTION OF NULL HYPOTHESIS:Explanation / Answer
The null hypothesis would be:
NPP is unaffected by increase in species richness and functional diversity of species.
Reason:Null hypothesis is always the opposite of what the alternate hypothesis states.As the alternate hypothesis says that NPP increases with increasing species richness and with increasing functional diversity,the null hypothesis would say just the opposite i.eNPP is unaffected by increase in species richness and functional diversity of species.