Statistical Inference and Hypothesis TestingConfidence Interval Estimation (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 55  58 of 73
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Question number: 55
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we have , , Then to compute 95 % confidence for which critical point is used?
Choices
Choice (4)  Response  

a. 


b. 


c.  zα=z0.025α 

d. 


Question number: 56
» 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 95 % confidence limit is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 57
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we want to estimate the average weight of cow in India. We draw a random sample of 1, 000 cows and weigh them. The mean was 180 pounds with a standard deviation of 30 pounds. What is the 95 % confidence interval?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 58
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The interval within which the unknown value of the population parameter is expected to lie is called as the________
Choices
Choice (4)  Response  

a.  Normal interval 

b.  Confidence Interval 

c.  Probability interval 

d.  All of the above 
