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Excel or Megastat.  This is practice exam   Suppose Bank of America would like to investigate

Excel or Megastat.  This is practice exam   Suppose Bank of America would like to investigate

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Need to understand how to solve using Excel or Megastat.  This is practice exam

 

Suppose Bank of America would like to investigate if the credit score and income level of an individual are independent of one another. Bank of America selected a random sample of 400 adults and asked them to report their credit score range and their income range. The following contingency table presents these results.

  Credit Score
Class Less than 650 650–750 More than 750
Income < $50,000 24 27

34
$50,000 ≤ Income < $100,000 28 45 47
$100,000 ≤ Income < $150,000 55 26 31
Income ≥ $150,000 32 25 26


The test statistic for this sample is ________.

 

Multiple Choice
  •  

    18.116

  •  

    19.670

    Correct
  •  

    23.401

  •  

    26.926

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