ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 244  248 of 253
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Question number: 244
» Statistical Inference and Hypothesis Testing » CramerRao Inequality
Question
CramerRao Inequality provides a Lower bond to the variance of an ________ estimator for a parameter.
Choices
Choice (4)  Response  

a.  Maximum Likelihood estimator 

b.  Unbiased 

c.  Consistent 

d.  Sufficient 

Question number: 245
» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses
Question
A Statistical Hypothesis, which specifies the population completely, is known as
Choices
Choice (4)  Response  

a.  Null Hypothesis 

b.  Composite Hypothesis 

c.  Simple Hypothesis 

d.  None of the above 

Question number: 246
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The confidence level is 95%. This means
Choices
Choice (4)  Response  

a.  95 % of the samples will contain the population mean and 5 % of the samples do not contain the population mean 

b.  95 % of the samples do not contain the population mean and 5 % of the samples will contain the population mean 

c.  We are 100 % confident that the samples will contain the population mean 

d.  None of the above 

Question number: 247
» Official Statistics » National and International Official Statistical System
Question
In an Irreducible Markov chain:
Choices
Choice (4)  Response  

a.  You can move from one state to another only in 1 direction 

b.  You can only move between 1 of two states 

c.  There is at least one state when you can go with 0 probability. 

d.  All the states can communicate with each other 

Question number: 248
» Linear Models » GaussMarkov Linear Models
Question
Which of the following is a property of a renewable process?
Choices
Choice (4)  Response  

a.  Inter arrival intervals are negative 

b.  Inter arrival intervals are positive 

c.  Inter arrival intervals may be identically distributed 

d.  Question does not provide sufficient data or is vague 
