Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 176  179 of 222
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Question number: 176
» Statistical Inference and Hypothesis Testing » Sufficient Estimator
Question
Let be a random sample from . Then the sufficient estimator for is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 177
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Degrees of freedom for the mean in case of large sample size is…………; and in case of for the small sample size is……. .
Choices
Choice (4)  Response  

a.  and n 

b.  and 

c.  and 

d.  and 

Question number: 178
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
In a class of consistent estimators for a parameter, which one will you consider as the most efficient estimator?
Choices
Choice (4)  Response  

a.  One whose mean and variance both are less than the other estimators. 

b.  One whose sampling variance is less than the other estimators. 

c.  One whose mean is less than the other estimators. 

d.  Question does not provide sufficient data or is vague 

Question number: 179
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
It is given that , , . Then the Confidence Interval at is given by
Choices
Choice (4)  Response  

a. 


b. 


c.  Both a. and b. are correct 

d.  Question does not provide sufficient data or is vague 
