ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 180  184 of 246
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Question number: 180
» Statistical Inference and Hypothesis Testing » Sufficient Estimator
Question
A statistic is called as ________ Estimator for the parameter θ, if the conditional distribution of given T does not depend on θ.
Choices
Choice (4)  Response  

a.  Unbiased  
b.  Maximum Likelihood estimator  
c.  Efficient  
d.  Sufficient 
Question number: 181
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
A survey of 200 factory workers provides a sample mean of 7.10 hours worked. What is the 95 % confidence interval based on this sample. Calculated standard deviation is 5 hours.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Both a. and b. are correct 
Question number: 182
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The 99 % confidence interval for of the normal population is given by
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 183
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
It is given that n = 1029, and . Then the 90 % Confidence Interval for the population mean is given by
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 184
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we take a random sample from some population and obtain a 96 % confidence interval for the population mean, , then which quantity is guaranteed to be in the interval?
Choices
Choice (4)  Response  

a.  μ  
b.  s  
c. 
 
d.  μ & s 