Economist, studying the dependence of the level of distribution costs

Economist, studying the dependence of the level of distribution costs

Economist, studying the dependence of the level of distribution costs at the (thous. Rub.) Of the volume of trade x (thous. Rub.), Examined 10 shops selling the same range of products in different regions. The data obtained are shown in Table 2 1.Zadanie.
Define the parameters of the linear regression function and record a linear relationship.
Task 10.
Build confidence intervals for the forecast of the significance level of 0.05.

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answers to 10 tasks