# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 119 - 124 of 253

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## Question 119

### Question

MCQ▾Efficiency of sample mean as compared to median as an estimate of the mean of a normal population is

### Choices

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

a. | 22 percent | |

b. | 64 percent | |

c. | 360 percent | |

d. | 157 percent |

## Question 120

### Question

MCQ▾Formula for obtaining 99 % confidence limits for the mean μ of a Normal population with mean μ and standard deviation σ are

### Choices

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

a. | ||

b. | ||

c. | ||

d. | All a., b. and c. are correct |

## Question 121

### Statement

True-False▾The null hypothesis is generally assumed to be ________ until evidence indicates otherwise.

## Question 122

### Question

MCQ▾Suppose The confidence interval is given by the relation . Then is called as the

### Choices

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

a. | Correlation Coefficient | |

b. | Confidence coefficient | |

c. | Confidence interval | |

d. | None of the above |

## Question 123

### Question

MCQ▾In general, the estimates obtained by the method of moments are ________

### Choices

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

a. | Asymptotically normal but not efficient | |

b. | Asymptotically normal and always efficient | |

c. | Not asymptotically normal but efficient | |

d. | None of the above |

## Question 124

### Question

MCQ▾The joint probability density function of the sample variates is called ________

### Choices

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

a. | Confidence limits | |

b. | Likelihood function | |

c. | Minimum Variance Unbiased MVU estimator | |

d. | None of the above |