Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 169  172 of 222
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Question number: 169
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The health organization wants to study the mean weight of Indian women of the age group 30  40. A fourty woman of that age group is randomly selected and their weights in pounds are recorded.
140  153  167  115 
136  136  145  125 
147  134  154  148 
136  126  139  132 
152  132  139  120 
130  138  138  146 
116  137  143  115 
159  147  122  145 
128  123  134  127 
131  154  150  116 
The calculated standard deviation is σ = 12.77. Then the 95 % confidence interval for the mean weight is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 170
» Statistical Inference and Hypothesis Testing » Sufficient Estimator
Question
Let be a random sample from a uniform population on . Then the sufficient estimator for is
Choices
Choice (4)  Response  

a. 


b.  Either (i) or (ii) 

c. 


d.  Question does not provide sufficient data or is vague 

Question number: 171
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Keeping the sample size same, suppose we decrease the level of confidence then the length of the Confidence interval will become
Choices
Choice (4)  Response  

a.  Remains the same 

b.  Smaller 

c.  More 

d.  Question does not provide sufficient data or is vague 

Question number: 172
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Confidence intervals can be constructed ________
Choices
Choice (4)  Response  

a.  Only for the parameter of population correlation 

b.  Only for the parameter of the mean 

c.  For various parameters 

d.  All of the above 
