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Table 1  Values of regression equation parameters



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Table 1 
Values of regression equation parameters 
Coef. 
Std. err. 

P>|t| 
95 % Conf. Interval 
1.068 
0.188 
5.68 
0.000 
0.643 
1.494 
1.535 
0.176 
8.71 
0.000 
1.136 
1.934 
0.981 
0.240 
4.08 
0.003 
0.437 
1.525 
0.174 
0.034 
5.11 
0.001 
0.097 
0.251 
Cons. 
1516.131 
83.094 
18.25 
0.000 
1328.16 
1704.1 
According to the results of Table 1, the significance of the model parameters 
determined by the impact on the gross domestic product (t-Statistic) 
and 
when it is equal to 


,
and 
on the condition 
that it is 
, , 
and 
all of the variables 
parameters are statistically significant. By using data from the tables 3.4, the following 
regression equation can be drawn: 
(2) 
According to the regression equation, the increase in one unit of investment in the 
current period under conditions where other factors have not changed will increase the 
gross domestic product by an average of 1.068 units. The one-unit increase in three-
year and five-year previous investments will also lead to an increase in gross domestic 
product to 1.535 and 0.981 units, respectively. An increase in the household 
consumption by one unit will lead to an increase in the gross domestic product by 0.174 
units. From the analysis it can be seen that investments are important in ensuring 
economic growth in our country, including investment projects designed for the 
medium term period, have a strong impact on economic growth. Because the parameter 
of investments with three-years lag is equal to 1.535, which is greater than the 
parameters of other variables. 
Of course, in economics, it is required to evaluate each developed regression 
equation on the basis of additional criteria. Therefore, the regression equation is 
checked by a number of criteria. According to the table, it turns out that the regression 
equation is adequate and reliable. Because the p

value of F

statistics is very small 
(0.000) and the determinative coefficient (R2) is 99.9%. 

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