ANSWER QUESTIONS AND EXPLAIN ANSWERS

Q. 1
We can causally estimate the effect of the registration fees exemption on the number of registered businesses in a village because we cannot find any variables that are not in the regression and associated with the number of registered businesses in a village.
Q.3
First model we have built with time_business as predictor and mortality as response variable.
Time_business and constant both the p value less than 0.05 that means both are statistically significant. Time business has a standard error of 0.06 which is higher in terms of beta coefficient which is just 0.21, that means it has higher variance in beta coefficient of time business.
For the second regression model we have a built model with time business and tax rate as a predictors and modality as a response variable and both of the protectors are statistically significant to protect our response variable...