ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 185  188 of 246
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Question number: 185
» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators
Question
A Minimum Variance Unbiased Estimator is said to be unique if for any other estimator ,
Choices
Choice (4)  Response  

a. 


b. 


c.  Neither (i) nor (ii) 

d.  Question does not provide sufficient data or is vague 

Question number: 186
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Given the probability statement that
Which of the following statement is correct in respect of given probability statement?
Choices
Choice (4)  Response  

a.  The confidence interval is 11.32 

b.  4.35 and 15.67 are 90 percent confidence limits 

c.  Probability that lies in the interval 4.35 and 15.67 is 0.90 

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

Question number: 187
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we wish to estimate the average height of the tigers in India. We take a sample of 130 tigers and measure their heights. The mean height is 98.249 cms. The calculated standard deviation is cms, then the confidence interval for the population mean at 90 % confidence limit is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 188
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Confidence intervals for the parameters , of the Normal distribution, when is known, is given by
Choices
Choice (4)  Response  

a. 


b. 


c.  Both a. and b. are correct 

d.  Question does not provide sufficient data or is vague 
