chap24_2010

chap24_2010 - Chapter 24 Survey Methods and Sampling...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 24 Survey Methods and Sampling Techniques
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sample Statistics Mean, Median, Mode and standard deviation When calculated from sample data are called sample statistics When calculated from the entire population, they are called population parameters. For practical reasons we usually analyze a portion (sample). Each sample statistic posses a probability distribution know as its sampling distribution. A sample survey gathers information from a portion of the population.
Background image of page 2
Planning a questionnaire Designers job: Define the purpose of the survey Choose the questions to include Determine appropriate future actions based on survey results. Voice of Customer (VOC) – Six Sigma’s approach to listening to the customer
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Steps to conduct a survey 1. Clearly define project goals – what do you need to know about the customer? (VOC) 2. Determine population – whom should be surveyed 3. Select sample of respondents 4. Systematic sampling is a common sampling method 5. Consider using random cluster sampling when each member of the population belongs to a subgroup 6. Consider the need for precise results when choosing sample size and
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 11

chap24_2010 - Chapter 24 Survey Methods and Sampling...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online