Econometrics (Econ906)

Generally below what level is considered as sub ground water

What to do if the acceleration in pulley system is negative 

assume that good  “a” and good “B” are related goods and qb=1691-400pb+6pa-6y.suppose that pb=0.1 birr, pa=o.3birrand y(income)=10 birr then compute

a/ price elasticity of demand for good b?

b/ income elasticity of demand for good b and explain the nature of good?

c/ cross price elasticity of demand and state the nature of goods whether they are substitute, complementary, or unrelated?

suppose firm under perfectly competitive market has revenue 75q and the cost of production given us fixed cost 50 and variable cost 20q square  +5q . then find the equilibrium price and and quantity and show graphically neatly and clearly???????????

suppose firm under perfectly competitive market has revenue 75q and the cost of production given us fixed cost 50 and variable cost20qsquar+5q . then find the equilibrium price and and quantity and show graphically neatly and clearly???????????

Researcher is using data for a sample of 10 observations to estimate the relation between consumption expenditure and income.

Preliminary analysis of the sample data produces the following data. 

∑ 𝑥𝑦 = 700

∑𝑥2 = 1000

∑𝑋 = 100

∑𝑋= 100 

∑𝑌= 200

Ŷ.=20

𝑋̅=10

Slop coefficient=0.7

Intercept=-4

Variance of slope parameter=-0.03625

 Where, x = Xi - 𝑋̅ and y = Yi - 𝑌̅

a. Compute the value R2 (coefficient of determination) and interpret the result.