Assignment # 1
1. The following table provides data on incomes ( X ) for households in a small suburban
Y = (X-5)
where f denotes the number
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Textbook: T. H. Wonnacott and R. J. Wonnacolt:
Introductory Statistics for Business and Economics (Fourth Edition),
John Wiley and Sons, 1990 [C
ECO 580: Econometrics 1
NOTE: Answer ANY THREE of the four main questions. All main questions are worth 33
points, and a single point will be added to your total score to make the exam worth a
maximum of 100 points.
Eco 580 Assignment# 9 NS. Revankar
Econometrics 1 Confidence intervals
1 (a) Solve Ex: 8 7 on p.264.
(b) In a random sample of 160, there were 32 people unemployed. Find a 95% Cl for
the true proportion of unemployed in the population.
(c) Mr. A i
ECO580: Linear Regression with R program
N. S. Revankar.
Assignment # 7
1. Suppose the daily toll collection (X) at an island bridge is distributed normally as follows:
x ~ N( )1: 1500, a2 = 2,500).
Suppose further that an investigator is authorized to collect i
Ec0580 Assignment # 6 N5. Revankar
Econometrics 1 Joint Probability Distribution
(a) What is the value of k if the table above is to dene a two-variable joint distribution of
X and Y?
[NOTE: You will use below the value of k you determined from the
Ec0580 Assignment # 3 : Probability N.S.Revankar.
1.Suppose that 14 defective light bulbs were inadvertently mixed with 6 good ones.
(a)lf two bulbs are drawn at random (with replacement), what is the probability that they both are bad?
Ec0580 Assignment it 12 N5. Revankar
Econometrics-1. Two-Variable Regression
1.(a) in each pair below, indicate which variable you will regress on which, giving economically
(i) Investment and interest rate
_ (ii) Mme, homworked
N. S. Revankar.
NOTE: (A). Answer ANY FOUR of the main questions. If you answer all of the five main
questions, answer to a randomly selected question will be ignored and only answers to the
remaining four questions will be grade