what are the null and alternate hypothesises for the following ?

(f) Using a 1% significance level, test the following hypotheses,

(i) A one percent increase in the crime rate per capita decreases the MEDV by 0.05 units (i.e., $50).

(ii) A unit increase in the NOX decreases the MEDV by 200 units. (g) Use the confidence interval approach to test the following hypotheses at the 5% significance level, (i) A unit increase in the RM increases the MEDV by 200 units.

(ii) A one percent increase in the TAX decreases the MEDV by 2 units.