# ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 217 - 220 of 246

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## Question number: 217

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

Let be a random sample and and be any two statistics such that , then the confidence limits for a parametric function of can be obtained by the relation

### Choices

Choice (4) | Response | |
---|---|---|

a. | and | |

b. | and | |

c. | and | |

d. | Question does not provide sufficient data or is vague |

## Question number: 218

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

### Question

An estimator is considered to be the best if its distribution is

### Choices

Choice (4) | Response | |
---|---|---|

a. | Concentrated about the true parameter value | |

b. | Normal | |

c. | Discrete | |

d. | Continuous |

## Question number: 219

» Statistical Inference and Hypothesis Testing » Sufficient Estimator

### Question

If a statistic provides as much information as the random variable could provide, Then T is a ________ Statistic

### Choices

Choice (4) | Response | |
---|---|---|

a. | Efficient | |

b. | Unbiased | |

c. | Sufficient | |

d. | Consistent |

## Question number: 220

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

Confidence intervals for the parameters , of the Normal distribution having density function , in case of unknown variance , is given by

### Choices

Choice (4) | Response | |
---|---|---|

a. |
| |

b. |
| |

c. |
| |

d. | None of the above |