Stratified random sampling and systematic random sampling

Sampling distribution

Age specific birth and death rates

Construction of consumer price index

What is a life table? Explain its uses and limitations.

Define correlation coefficient. What are its properties?

a) Fit a straight line ( See Answer →

Discuss the efficiency status of a perfectly competitive market.

b) Bring out the major properties of binomial distribution. Mention certain important uses of this distribution.

a) The probability that Rajesh will score more than 90 marks in class test is 0.75. What is the probability that Rajesh will secure more than 90 marks in three out of four class tests?

Bring out the distinction between sample survey and census. Describe the steps you would follow in collecting data though a sample survey. Prepare a small questionnaire for collection of income and expenditure levels of households.

(a) What is a standard normal variable? What are its properties?

(b) Find out the area under the standard normal curve for each of the following (use z-table). Sketch each one of them.

(i) between z = 0 and z = 0.78

(ii) between z = – 0.56 and z = 0

(iii) between z = – 0.43 and z = 0.78

(iv) between z = 0.44 and z = 1.50

(v) to the right of z = – 1.33.

Write a short note on the types of specification errors in a regression model.

In the context of hypothesis testing distinguish between one-tailed and two-tailed tests. Use appropriate diagram.

In the context of hypothesis testing distinguish between one-tailed and two-tailed tests. Use appropriate diagram.

Describe the procedure of applying RESET test.

Describe the properties of OLS estimators.

What is a dummy variable? Illustrate the situation of dummy variable trap.

Interpret the coefficient of determination ( See Answer →

When do you encounter the problem of multicollinearity? What are the remedial measures for the problem of multicollinearity?