ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 53  57 of 246
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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. 


Question number: 55
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
A biased estimator is consistent if
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 

Question number: 56
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
A random sample of size 5 is drawn from a normal population with unknown mean . Then is a unbiased estimator of
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 57
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
For normal distribution
Choices
Choice (4)  Response  

a.  Sample mean is more efficient estimator than the sample median. Since, 

b.  Sample median is more efficient estimator than the sample mean. Since, 

c.  Sample median is more efficient estimator. Since, 

d.  None of the above 
