Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 86  89 of 222
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Question number: 86
» Statistical Inference and Hypothesis Testing » Moments and Least Squares
Question
For a simple linear model , the estimated values of and by the method of least square will be
Choices
Choice (4)  Response  

a.  and 

b.  and 

c.  and 

d.  and 

Question number: 87
» Statistical Inference and Hypothesis Testing » CramerRao Inequality
Question
Regularity conditions of CramerRao inequality are related to
Choices
Choice (4)  Response  

a.  Integrability of functions 

b.  Neither (i) and (ii) 

c.  Differentiability of functions 

d.  Both a. and c. are correct 

Question number: 88
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
A school wants to study the number of days the students will be absent from school per year. It surveys attendance of 10 children and the number of days the children is absent from schools are
12  13 
9  11 
7  8 
4  9 
5  8 
Standard deviation . Then 95 % Confidence interval on population mean is
Choices
Choice (4)  Response  

a.  8.6±2.05 

b.  6.55 ≤ μ ≤ 10.65 

c. 


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

Question number: 89
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
is an ________ where as is an ________
Choices
Choice (4)  Response  

a.  Estimate and an estimator 

b.  Estimator and an estimate 

c.  Question does not provide sufficient data or is vague 

d.  All of the above 
