a) A researcher estimated the following regression equation for sorghum production,
Yt from the use of various amounts of fertilizer, X1 and insecticides X2 on a hectare
basis using time series data from 2001 to 2010.
The operation model is:
Yt = B0 + B1X1 + B2X2 + ei
The estimated regression equation is:
Yt = 31.98 + 0.65X1 + 1.10X2
(0.24) (0.27) (0.25)
Adjusted R2 = 0.989
Figures in parenthesis are standard error of estimates.
i) Estimate the t-values for each of the coefficients
ii) Interpret the results
1) An economy has a saving function (s) which is given by the equation s= -300 + 0.2Y. If the level of national income is 3000 what is the APS?
2) If, in an economy, out of every additional 100 of national income 20 is taxed. 20 is spent and10 is spent on imports, the value of the multiplier is?
3) National income =1000 and injection = 75 calculate the new national income if the
i) moc = 0.4 and mpt =0.1
li) mpc = 0.2 and mpt = 0.2
4) A man has a rise in income of 23000 to 26000. As a result his saving rises from 800 to 1200. His mpc is?
what factors militate against the effective compliance with continuous assessment standard by Economics teachers in South Africa
To improve the value of currency, which of the following could work?
List the three broad functions of government and state what they mainly refer to.
Which obstacles impede economics teachers successful adherence with the continuous assessment norm in South Africa
measure used by the government protect domestic firms from foreign competitio
calculate nominal economic growth rate
GDP at current prices and constant prices in economy x
Discuss whether a country should impose more trade restrictions