STA301 Final Term MCQs Set 2 by VU Topper RM

Q1. Vu-Topper RM (1 marks)

If Var(mean1) < Var(mean2) it implies: A. Mean2 is more efficient B. Mean2 is more consistent C. Mean1 is more consistent

D. Mean1 is more efficient

Q2. Vu-Topper RM (1 marks)

An estimator is said to be efficient if it has A. Unbiased estimate

B. Smallest Variance

C. Both (a) & (b) D. None of these

Q3. Vu-Topper RM (1 marks)

In sampling from a large population with sigma= 12, the standard error of the mean is found to be 3. The size of the sample used is:

A. 16

B. 12 C. 22 D. 11

Q4. Vu-Topper RM (1 marks)

If the two populations are non-normal and both the sample sizes are large, then the sampling distribution of the difference of means will be: A. t-distribution

B. Normal distribution

C. Chi-square distribution D. F-distribution

Q5. Vu-Topper RM (1 marks)

The standard error of the sampling distribution of differences of means ( x 1 - x 2) ,is equal to: B. None of the above C. √(б/n)

Q6. Vu-Topper RM (1 marks)

P 0 1 2 3 f(p) 1/20 9/20 9/20 1/20

Select the correct option A. 10/20

B. 30/20

C. 25/20 D. 15/20

Q7. Vu-Topper RM (1 marks)

Normal approximation to the binomial distribution is used when:

A. np>5

B. Both of the above C. None of the above D. nq>5

Q8. Vu-Topper RM (1 marks)

A parameter is a ..... quantity.

A. Constant

B. Sample C. Random D. Variable

Q9. Vu-Topper RM (1 marks)

In a sampling experiment the mean value of all the possible values of the statistic was found to be equal to the corresponding population parameter. This condition suggests that the statistic is: A. A biased estimate for the parameter

B. An unbiased estimator of the parameter

C. Approximately normally distributed D. Normally distributed

Q10. Vu-Topper RM (1 marks)

Suppose we have a population of size N = 5 i.e. 0,11,20,23,45 and if we draw all possible samples of size n = 2 with replacement then total possible samples will be: A. 35 B. 50

C. 25

D. 10

Q11. Vu-Topper RM (1 marks)

In interval estimation we obtained a ……of values as an estimate of parameter.

A. Range

B. Group C. Both a and b D. None of these

Q12. Vu-Topper RM (1 marks)

P 0 1/3 2/3 1 f(p) 1/20 9/20 9/20 1/20

A. 11/20 B. 12/20

C. 9/20

D. 10/20