ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 232  235 of 253
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Question number: 232
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
It is given that sample size n = 10, sample Mean and Standard Deviation =11.1. Then 95 % Confidence Interval for the population is
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 233
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
What is the 95 % Confidence Interval if n = 100, sample mean and population standard deviation
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Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 234
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
A Electric company wants to estimate the amount of electric bills of the past month. He takes a random sample of 18 households and obtains the following amounts, (in Rs) for their past month electric bill. It is given that
1608  1875  1264 
1794  1478  1999 
1828  2206  1798 
1794  1738  1740 
1598  1486  1830 
1568  1941  1516 
The 95 % confidence interval of the mean electric bill will be
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 235
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
If is the sample mean of a random sample of size ( > 30) from a Normal population with known variance, a Confidence Interval (CI) on is given by
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Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 
