ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 173  178 of 253
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Question number: 173
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
A range computed using sample statistics to estimate an unknown population parameter with a given level of confidence is known as
Choices
Choice (4)  Response  

a.  Maximum Interval  
b.  Normal interval  
c.  Confidence interval  
d.  Time interval 
Question number: 174
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Formula for 95 % Confidence interval for the variance of the Normal distribution when is known, is given by
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 175
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
For a normal population , the variance of the sample mean and sample variance are given . Then the efficiency of mean against median is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 176
» Statistical Inference and Hypothesis Testing » RaoBlackwell Theorem
Question
RaoBlackwell Theorem enables us to obtain MVUE through:
Choices
Choice (4)  Response  

a.  Sufficient statistics  
b.  Unbiased Estimator  
c.  Complete Statistics  
d.  Efficient statistics 
Question number: 177
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
A 95 % confidence interval is shown as . This means
Choices
Choice (4)  Response  

a.  Probability that lies in the interval 60.84 and 96.5 is 0.95  
b.  The length of the confidence interval is 35.66  
c.  60.84 and 96.5 are 95 percent confidence limits  
d.  All a. , b. and c. are correct 
Question number: 178
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
If is an MVU estimator of for all and is any other unbiased estimator of with efficiency , then the correlation coefficient between is given by
all
Choices
Choice (4)  Response  

a.  for all  
b.  for all  
c.  for all  
d.  for all 