Answer: Provided in the explanation section.
Explanation:
We can see here that the model with all district has r2=0.535, from that we can say that model is explaining 53.5% of variation in WSV is explained this model so it could be considered as good model.
when we look at the second model which has r2=0.440 which mean model explains only 44% of variation in WSV and third model has r2=0.615 which indicates that it expains 61.5% if variation in WSV.
So, models can be used productively to predict.
From, the model with all district a candidate can get insight that,
Here, both the variable WSTE and WSRV have positive coefficient so we can say that as total share of advertising expenditure and number of registered voters incandidates politicel party increases his share of votes cast will increase.
And if candidate is registering from the incumbent district his share of votes cast will increase.
If the candidate has already dicided to register him self form an incumbent district he can get insight from the model of incumbent disctrict.
This model has positive coefficient for WSTE that concludes that more the candidate expenses for advertising campaign more his share of votes cast will be. and similarly for WSRV also has positive coefficient so more number of registered voter that are registered to his party can also increase the candidate's share of votes casted in the election.
If a candidate decides to register from nonincumbent district he can get insights from model for nonincumbent district.
This model has positive coefficient for WSTE that concludes that if candidate make more expenses for advertising campain more his share of votes cast will be. and similarly WSRV also has positive coefficient so more number of registered voter that are registered to his party can also increase the candidate's share of votes casted in the election.
Overall we could say if a candidate want to win the election he has to more expenses for his advertising campaign and also he to make that he has more proportion of registered voters that are registered to his political party.
I hope this helped !!!
