ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 239  242 of 246
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Question number: 239
» Statistical Inference and Hypothesis Testing » CramerRao Inequality
Question
The denominator in the CramerRao inequality is known as
Choices
Choice (4)  Response  

a.  Upper bound of the Variance  
b.  Lower Bound of the variance  
c.  Information Limit  
d.  None of the above 
Question number: 240
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we want to find out the mean milk yield of the cows in India, a survey of 66831 cows was made and the mean milk yield was 12.5 liter with a standard deviation of 4.3 liter. Then the 95 % confidence interval for the average milk yield is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 241
» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator
Question
For a normal population , the variance of the sample mean and sample variance are given by and . Then which of the following is true?
Choices
Choice (4)  Response  

a.  Sample mean is more efficient estimator for than the sample median  
b.  Sample mean and Sample median are efficient  
c.  Sample median is more efficient estimator for than the sample mean  
d.  All of the above 
Question number: 242
» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses
Question
A Statistical Hypothesis, which does not specifies the population completely, is known as
Choices
Choice (4)  Response  

a.  Composite Hypothesis  
b.  Simple Hypothesis  
c.  Null Hypothesis  
d.  Alternative Hypothesis 