Statistical Inference and Hypothesis TestingConfidence Interval Estimation (ISS Statistics Paper II (New 2016 MCQ Pattern)): Questions 61  65 of 73
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Question number: 61
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Confidence intervals for the parameters , of the Normal distribution having density function, in case of unknown variance, is given by
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 

Question number: 62
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The width of the confidence interval depends on the
Choices
Choice (4)  Response  

a.  Critical Value 

b.  Standard error. 

c.  Level of confidence 

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

Question number: 63
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
If we decrease the sample size, keeping the confidence level the same, then the length of the confidence interval will
Choices
Choice (4)  Response  

a.  Decrease 

b.  Cannot be determined with the given information 

c.  Increase 

d.  It will stay the same 

Question number: 64
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
As the sample size increases the length of the confidence interval………….
Choices
Choice (4)  Response  

a.  Increases 

b.  Cannot be determined with the given information 

c.  Decreases 

d.  It will stay the same 

Question number: 65
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Formula for obtaining 95 % confidence limits for the mean μ of a Normal population with mean μ and standard deviation σ are
Choices
Choice (4)  Response  

a. 


b. 


c. 


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