ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 179  183 of 253
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 253 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 200.00 or
Question number: 179
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
In a college survey, children were asked how many hours they study per day. A sample of 22 children is collected. The mean was 3.25 hours with a standard deviation of 1.57 hours. Then 95 % and 99 % confidence interval for the number of hours of study per day is
Choices
Choice (4)  Response  

a.  and 

b.  and 

c.  and 

d.  All of the above 

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. 

