# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 107 - 112 of 253

Access detailed explanations (illustrated with images and videos) to **253** questions. Access all new questions we will add tracking exam-pattern and syllabus changes. *Unlimited Access for Unlimited Time*! View Sample Explanation or View Features.

Rs. 200.00 or

How to register?

## Question number: 107

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

As the level of confidence level decreases, the size of the corresponding interval will

### Choices

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

a. | Decrease | |

b. | Remains the same | |

c. | Increase | |

d. | All of the above |

## Question number: 108

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

It is given that , , . then 90 % Confidence Interval for is

### Choices

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

a. |
| |

b. |
| |

c. |
| |

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

## Question number: 109

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

is the Confidence intervals for when …… and is the Confidence intervals for when …. .

### Choices

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

a. | and | |

b. | and | |

c. | and | |

d. | All of the above |

## Question number: 110

» Statistical Inference and Hypothesis Testing » Moments and Least Squares

### Question

For a simple linear model , the estimated values of and by the method of least square will be

### Choices

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

a. | and | |

b. | and | |

c. | and | |

d. | and |

## Question number: 111

» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality

### Question

Regularity conditions of Cramer-Rao inequality are related to

### Choices

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

a. | Neither (i) and (ii) | |

b. | Differentiability of functions | |

c. | Integrability of functions | |

d. | Both b. and c. are correct |

## Question number: 112

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

### Question

A school wants to study the number of days the students will be absent from school per year. It surveys attendance of 10 children and the number of days the children is absent from schools are

12 | 13 |

9 | 11 |

7 | 8 |

4 | 9 |

5 | 8 |

Standard deviation . Then 95 % Confidence interval on population mean is

### Choices

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

a. | 8.6±2.05 | |

b. |
| |

c. | 6.55≤μ≤10.65 | |

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