ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 460 - 462 of 471

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Question number: 460

» Probability » Tchebycheff's Inequalities

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MCQ▾

Question

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 number: 461

» Statistical Methods » Non-Parametric Tests » Mann-Whitney

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MCQ▾

Question

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 number: 462

» Statistical Methods » Non-Parametric Tests » Wilcoxon

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MCQ▾

Question

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

Table of the exercise program

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