ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 183 - 187 of 253
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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
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Question number: 184
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Suppose we take a random sample from some population and obtain a 96 % confidence interval for the population mean, , then which quantity is guaranteed to be in the interval?
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| Choice (4) | Response | |
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| a. | μ |
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| b. | s |
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| d. | μ & s |
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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 ,
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| c. | Neither (i) nor (ii) |
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| d. | Question does not provide sufficient data or is vague |
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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?
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| Choice (4) | Response | |
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| a. | The confidence interval is 11.32 |
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| b. | 4.35 and 15.67 are 90 percent confidence limits |
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| c. | Probability that lies in the interval 4.35 and 15.67 is 0.90 |
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| d. | All a. , b. and c. are correct |
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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
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