ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 150 - 154 of 246
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Question number: 150
» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality
Question
Cramer-Rao Inequality provides a ________ to the variance of an unbiased estimator for a parameter.
Choices
| Choice (4) | Response | |
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| a. | Lower bound |
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| b. | Upper bound |
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| c. | Upper bound and Lower bound |
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| d. | All of the above |
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Question number: 151
» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses
Question
________ states that there is statistical difference between two variables.
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| Choice (4) | Response | |
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| a. | Simple Hypothesis |
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| b. | Null Hypothesis |
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| c. | Alternative Hypothesis |
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| d. | Statistical hypothesis |
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Question number: 152
» 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 % confidence interval for the number of hours of study per day is
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| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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Question number: 153
» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses
Question
A hypothesis that says there is no statistical significance between the two variables is known as
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Null hypothesis |
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| b. | Composite hypothesis |
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| c. | Alternative Hypothesis |
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| d. | Simple Hypothesis |
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Question number: 154
» Statistical Inference and Hypothesis Testing » Moments and Least Squares
Question
The estimators obtained by the method of moments under general conditions are ________efficient than Maximum Likelihood Estimators.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Equally |
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| b. | More |
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| c. | Less |
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| d. | Question does not provide sufficient data or is vague |
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