ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 50  54 of 246
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Question number: 50
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
Let be a random sample of size n from a large population with mean μ and variance . Which of the following statement is correct?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 51
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
If , _is a random sample of size n, from , a statistic
is an unbiased estimator of if
Choices
Choice (4)  Response  

a.  If 

b.  If 

c.  If 

d.  If 

Question number: 52
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
If an estimator of parameter , converges in probability to the true value of , then the estimator is called as
Choices
Choice (4)  Response  

a.  Consistent estimator 

b.  Biased Estimator 

c.  Unbiased estimator 

d.  All of the above 

Question number: 53
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
The difference between the expected value of an estimator and the value of the corresponding parameter is called:
Choices
Choice (4)  Response  

a.  Error of estimation 

b.  Sampling error 

c.  Standard error 

d.  Bias 

Question number: 54
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
Let be a random sample of size n = 3 from a distribution with mean and variance. Then is a unbiased estimator of
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

