4. Two research workers classified some people in income groups on the basis of sampling studies. Their results are as follows: Income groups Total Investigators Poor A Middle Rich 160 80 60 300 140 120 40 300 Total 300 200 100 600 Show that the sampling technique of at least one research worker is defective.

4. Two research workers classified some people in income groups on the basis of sampling studies. Their results are as follows: Income groups Total Investigators Poor A Middle Rich 160 80 60 300 140 120 40 300 Total 300 200 100 600 Show that the sampling technique of at least one research worker is defective.

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Description: 4. Two research workers classified some people in income groups on the basis of samplingstudies. Their results are as follows:Income groupsTotalInvestigators PoorAMiddleRich1608060300В14012040300Total300200100600Show that the sampling technique of a

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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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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Question

4. Two research workers classified some people in income groups on the basis of sampling
studies. Their results are as follows:
Income groups
Total
Investigators Poor
A
Middle
Rich
160
80
60
300
В
140
120
40
300
Total
300
200
100
600
Show that the sampling technique of at least one research worker is defective.

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