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Free IIA-CIA-Part3 Exam Braindumps (page: 14)

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PDF with 1555 Questions

In regression analysis, which of the following correlation coefficients represents the strongest relationship between the independent and dependent variables?

  1. 1.03
  2. -.02
  3. -.89
  4. .75

Answer(s): C

Explanation:

Because the range of values is between-1 and 1.-89 suggests a very strong inverse relationship between the independent and dependent variables. A value of --1 signifies a perfect inverse relationship, and a value of 1 signifies a perfect direct relationship.



The following data on variables x and y was collected from June to October.

The correlation coefficient between variables x and y is nearest to:

  1. 1.0
  2. -1.0
  3. 0.5
  4. 0.0

Answer(s): B

Explanation:

The simplest way to solve this problem is to use a scatter diagram:


The data points appear to form a straight line with a negative slope. Thus,-1 is the best estimate of the coefficient of correlation.



The correlation coefficient that indicates the weakest linear association between two variables is:

  1. -0.73
  2. -0.11
  3. 0.12
  4. 0.35

Answer(s): B

Explanation:

The correlation coefficient can vary from -1 to +1. A--1 relationship indicates a perfect inverse correlation, and a +1 relationship indicates a perfect direct correlation. A zero correlation coefficient indicates no linear association between the variables. Thus, the correlation coefficient that is nearest to zero would indicate the weakest linear association. Of the options given in the question, the correlation coefficient that is nearest to zero is -0.11.



Correlation is a term frequently used in conjunction with regression analysis and is measured by the value of the coefficient of correlation, r. The best explanation of the value r is that it:

  1. Is always positive.
  2. Interprets variances in terms of the independent variable.
  3. Ranges in size from negative infinity to positive infinity.
  4. Is a measure of the relative relationship between two variables.

Answer(s): D

Explanation:

The coefficient of correlation (r) measures the strength of the linear relationship between the dependent and independent variables. The magnitude of r is independent of the scales of measurement of x and y. The coefficient has a range of-1 to +1. A value of zero indicates no linear relationship between the x and y variables. A value of+1 indicates a perfectly direct relationship, and a value of --1 indicates a perfectly inverse relationship.



Page 14 of 390



Post your Comments and Discuss IIA IIA-CIA-Part3 exam with other Community members:

Gosia commented on December 16, 2024
Hi, did you have the same questions on exams?
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Becky commented on June 23, 2024
Exam collections here awesome. Kudos
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Shehata mohamed commented on December 13, 2023
Many thanks cia part 3
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IIA-CIA-Part3 commented on July 16, 2023
CIA Exam Part Three: Business Knowledge for Internal Auditing
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KC commented on December 20, 2017
Very helpful. For a another braindump I paid almost 4 times this and got the same material. Then I came across this site. Can't believe the same set of questions and answers are sold for almost a fraction of a price with much better quality and support.
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