# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 459 - 462 of 472

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## Question 459

### Question

MCQ▾Let . Using Chebyshev՚s inequality, find an upper bound on , where . Evaluate the bound for and .

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |

## Question 460

### Question

MCQ▾While tossing 100 coin let H count the number of heads. Then what is the bound probability of using Tchebycheff՚s Inequality?

### Choices

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

a. | 0.67 | |

b. | 0.75 | |

c. | 0.50 | |

d. | 0.33 |

## Question 461

### Question

MCQ▾Which statement is correct for Mann-Whitney U Test?

**Statement 1**: It is a non-parametric test

**Statement 2**: Non-parametric test that is used to compare two sample means that come from the same population, and used to test whether two sample means are equal or not

### Choices

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

a. | Only Statement 1 is correct | |

b. | Only Statement 2 is correct | |

c. | Statements 1 and 2 are correct | |

d. | Statements 1 and 2 are incorrect |

## Question 462

### Question

MCQ▾A study is run to evaluate the effectiveness of an exercise program in reducing systolic blood pressure in patients with pre-hypertension (defined as a systolic blood pressure between or a diastolic blood pressure between ) . A total of patients with pre-hypertension enroll in the study, and their systolic blood pressures are measured. Each patient then participates in an exercise training program where they learn proper techniques and execution of a series of exercises. Patients are instructed to do the exercise program 3 times per week for 6 weeks. After 6 weeks, systolic blood pressure are again measured. The data are shown below.

Patient | Systolic Blood Pressure Before Exercise Program | Systolic Blood Pressure After Exercise Program |

1 | 125 | 118 |

2 | 132 | 134 |

3 | 138 | 130 |

4 | 120 | 124 |

5 | 125 | 105 |

6 | 127 | 130 |

7 | 136 | 130 |

8 | 139 | 132 |

9 | 131 | 123 |

10 | 132 | 128 |

11 | 135 | 126 |

12 | 136 | 140 |

13 | 128 | 135 |

14 | 127 | 126 |

15 | 130 | 132 |

The test statistic for the Wilcoxon Signed Rank Test is

### Choices

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

a. | 55 | |

b. | 31 | |

c. | 72 | |

d. | 23 |