ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 193 - 196 of 253
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Question number: 193
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
The health organization wants to study the mean weight of Indian women of the age group 30 - 40. A fourty woman of that age group is randomly selected and their weights in pounds are recorded.
140 | 153 | 167 | 115 |
136 | 136 | 145 | 125 |
147 | 134 | 154 | 148 |
136 | 126 | 139 | 132 |
152 | 132 | 139 | 120 |
130 | 138 | 138 | 146 |
116 | 137 | 143 | 115 |
159 | 147 | 122 | 145 |
128 | 123 | 134 | 127 |
131 | 154 | 150 | 116 |
The calculated standard deviation is σ =12.77. Then the 95 % confidence interval for the mean weight is
Choices
| Choice (4) | Response | |
|---|---|---|
a. |
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b. |
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c. |
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d. |
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Question number: 194
» Statistical Inference and Hypothesis Testing » Sufficient Estimator
Question
Let be a random sample from a uniform population on . Then the sufficient estimator for is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Either (i) or (ii) | |
b. |
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c. |
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d. | None of the above | |
Question number: 195
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Keeping the sample size same, suppose we decrease the level of confidence then the length of the Confidence interval will become
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Smaller | |
b. | More | |
c. | Remains the same | |
d. | None of the above | |
Question number: 196
» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation
Question
Confidence intervals can be constructed ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Only for the parameter of population correlation | |
b. | For various parameters | |
c. | Only for the parameter of the mean | |
d. | Question does not provide sufficient data or is vague | |