# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 128 - 132 of 253

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## Question number: 128

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

A confidence interval for of the Normal distribution, when is unknown is given by

### Choices

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

a. |
| |

b. |
| |

c. |
| |

d. | None of the above |

## Question number: 129

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

If we increase the sample size and confidence interval at the same time then the length of the Confidence interval become

### Choices

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

a. | More | |

b. | Remains the same | |

c. | Smaller | |

d. | Cannot be determined from the given information |

## Question number: 130

» Statistical Inference and Hypothesis Testing » Complete Statistics

### Question

If is a family of distributions and is any statistic such that , then is called as

### Choices

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

a. | Efficient Statistics | |

b. | Consistent Estimator | |

c. | Complete Statistics | |

d. | Sufficient Statistics |

## Question number: 131

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

Consider the general form of confidence interval for the mean .

In this expression is known as ………. and is known as ……………….

### Choices

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

a. | Critical value, Standard Deviation | |

b. | Point estimate, Critical Value - standard error | |

c. | Control limit, variance | |

d. | All of the above |

## Question number: 132

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

### Question

If the expected value of an estimator is not equal to its parametric function , it is said to be a

### Choices

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

a. | Sufficient estimator | |

b. | Unbiased estimator | |

c. | Consistent estimator | |

d. | Biased estimator |