Coursework for Data Analysis Essay Example | Topics and Well Written Essays - 2750 words

Coursework for Data Analysis - Essay Example Growth: the coefficient for growth is given as 0.48663, this means that there is a positive relationship between growth and vote and as such for every unit increase in the growth, the dependent variable (vote) increases by a factor of 0.48663 and vice versa. Goodnews: the coefficient for goodnews is given as 0.64031, this means that there is a positive relationship between goodnews and vote and as such for every unit increase in the goodnews, the dependent variable (vote) increases by a factor of 0.64031 and vice versa. War: the coefficient for the war is given as -2.66658, this means that there is a negative relationship between war and vote and as such for every unit increase in the war, the dependent variable (vote) decreases by a factor of 2.66658 and vice versa. person: the coefficient for person is given as 3.04593, this means that there is a positive relationship between person and vote and as such for every unit increase in the person, the dependent variable (vote) increases by a factor of 3.04593 and vice versa. b) Perform tests for the statistical significance of the parameters of the independent variables inflation, growth and goodnews using the critical value of the corresponding t-distribution and the test p-value. Interpret the tests results. Inflation: the computed t-distribution is given as -1.37 whose |-1.37| is 1.37 a value less than the critical value of 2.0423, meaning that we fail to reject the null hypothesis. Similarly using the p-value we get that the p-value is 0.183>0.05 (significance level), leading us to accept the null hypothesis and thus concluding that the parameter of inflation is insignificant in the model at 5% significance level. growth: the computed t-distribution is given as 3.03 a value greater than the critical value of 2.0423, meaning that we reject the null hypothesis. Similarly using the p-value we get that the p-value is 0.006