ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 116  119 of 253
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Question number: 116
» Statistical Inference and Hypothesis Testing » Moments and Least Squares
Question
Method of least squares consists of
Choices
Choice (4)  Response  

a.  Minimizing the sum of squares of residuals 

b.  Maximizing the sum of squares of residuals 

c.  Question does not provide sufficient data or is vague 

d.  None of the above 

Question number: 117
» Statistical Inference and Hypothesis Testing » Sufficient Estimator
Question
If a statistics is a sufficient statistics for a parameter of the density function , then the conditional distribution of is ………. of for any value of
Choices
Choice (4)  Response  

a.  Dependent 

b.  Either dependent or Independent 

c.  Independent 

d.  All of the above 

Question number: 118
» Statistical Inference and Hypothesis Testing » Factorization Theorem
Question
is sufficient for if and only if the joint density function, of the sample values can be expressed in the form
where depends on and only through the value of and is independent of . This Theorem is known as
Choices
Choice (4)  Response  

a.  Factorization Theorem 

b.  Blackwell Theorem 

c.  RaoBlackwell Theorem 

d.  CramerRao Theorem 

Question number: 119
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
Efficiency of sample mean as compared to median as an estimate of the mean of a normal population is
Choices
Choice (4)  Response  

a.  22 percent 

b.  64 percent 

c.  360 percent 

d.  157 percent 
