ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 129  133 of 246
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Question number: 129
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
If we increase the sample size and confidence interval at the same time then the length of the Confidence interval become
Choices
Choice (4)  Response  

a.  More 

b.  Cannot be determined from the given information 

c.  Remains the same 

d.  Smaller 

Question number: 130
» Statistical Inference and Hypothesis Testing » Complete Statistics
Question
If is a family of distributions and is any statistic such that , then is called as
Choices
Choice (4)  Response  

a.  Sufficient Statistics 

b.  Efficient Statistics 

c.  Complete Statistics 

d.  Consistent Estimator 

Question number: 131
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Consider the general form of confidence interval for the mean .
In this expression is known as ………. and is known as ……………….
Choices
Choice (4)  Response  

a.  Critical value, Standard Deviation 

b.  Control limit, variance 

c.  Point estimate, Standard Error 

d.  All of the above 

Question number: 132
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
If the expected value of an estimator is not equal to its parametric function, it is said to be a
Choices
Choice (4)  Response  

a.  Unbiased estimator 

b.  Consistent estimator 

c.  Biased estimator 

d.  Sufficient estimator 

Question number: 133
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
Which of the following results are true for Minimum Variance Unbiased Estimator (MVUE) 
Choices
Choice (4)  Response  

a.  If nd are MVUE of and then will be an MVUE of 

b.  The correlation coefficient between a most efficient estimator and any other estimator with efficiency is . 

c.  MVUE is unique 

d.  All a. , b. and c. are correct 
