Statistical Inference and Hypothesis TestingMinimum Variance Unbiased Estimators (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 8  10 of 15
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Question number: 8
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
If and are two estimators for , such that and , then
Choices
Choice (4)  Response  

a. 


b. 


c.  Either or 

d.  Question does not provide sufficient data or is vague 

Question number: 9
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
For a normal population , both sample mean and sample median are unbiased and consistent estimators of . In this case, which one will be the efficient estimator?
Choices
Choice (4)  Response  

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

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

c.  Sample mean and Sample median are equally efficient 

d.  All of the above 

Question number: 10
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
Suppose are the unbiased estimators of with Efficiencies and respectively. and is the correlation coefficient between them. Then
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

