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Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
Publisher: Cengage Learning
ISBN: 9781305494602

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Section
BuyFindarrow_forward

Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
Publisher: Cengage Learning
ISBN: 9781305494602
Chapter 4, Problem 6Q
Textbook Problem
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What are three types of sampling? Which one would you use to analyze data input errors?

Program Plan Intro

Three types of sampling and the one which is used to analyze data input errors.

Explanation of Solution

Sample is small set of data from large collection of data. Collection of actual documents, reports, records, data entry documents of the old system in order to ensure that new information system works with data is known as sampling.

There are three types of sampling techniques:

  • Systematic sampling: It is periodical method of sampling where samples are collected based on some constant interval. E.g. Sample of every fifth customer.
  • Stratified sampling: Data is divided into small groups from which samples are taken in stratified sampling...

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