ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 50  54 of 253
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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.  Question does not provide sufficient data or is vague 

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.  Biased Estimator 

b.  Consistent estimator 

c.  Unbiased estimator 

d.  Question does not provide sufficient data or is vague 

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.  Bias 

c.  Standard error 

d.  Sampling error 

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. 

