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.  Unbiased 

b.  Consistent 

c.  Maximum Likelihood estimator 

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.  Simple Hypothesis 

c.  Composite Hypothesis 

d.  Question does not provide sufficient data or is vague 

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

b.  95 % of the samples will contain the population mean and 5 % of the samples do not 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 only move between 1 of two states 

b.  All the states can communicate with each other 

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

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

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 may be identically distributed 

b.  Inter arrival intervals are negative 

c.  Inter arrival intervals are positive 

d.  None of the above 
