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.

Table of the Exercise Program
PatientSystolic Blood Pressure

Before Exercise Program

Systolic Blood Pressure

After Exercise Program

1125118
2132134
3138130
4120124
5125105
6127130
7136130
8139132
9131123
10132128
11135126
12136140
13128135
14127126
15130132

The test statistic for the Wilcoxon Signed Rank Test is

Choices

Choice (4)Response

a.

55

b.

31

c.

72

d.

23