ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 201  205 of 253
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Question number: 201
» 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 

b.  and 

c.  and 

d.  and n 

Question number: 202
» 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 is less than the other estimators. 

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

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

d.  None of the above 

Question number: 203
» 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 

Question number: 204
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
If T is an unbiased estimator for , then is biased estimator of
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  2θ 

Question number: 205
» Statistical Inference and Hypothesis Testing » Moments and Least Squares
Question
The set of equations obtained in the process of Least square estimation are called
Choices
Choice (4)  Response  

a.  Simultaneous Equations 

b.  Normal Equations 

c.  Continuous Equations 

d.  All of the above 
