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Identifying Biasit gets hard to determine

  1. Apr 27, 2012 #1
    [Question]
    Identify what, if any, bias is found in each of the following sampling
    scenarios.
    Explain your answer for each one.

    a) Selecting some residents of a building to participate in a survey
    of recycling options based on the last digit of their phone number

    b)Deciding whether to create a new restaurant menu based on the
    responses of customers who returned a survey card

    c) Polling members of a business association to gauge public reaction
    to a proposed new business tax


    [Difficulty]
    There's a blur between sampling bias, response bias and household
    bias...I don't know which is applicable, but was wondering if I could
    get a second opinion for my attempt

    [My attempt]
    Identify what, if any, bias is found in each of the following sampling
    scenarios.
    Explain your answer for each one.

    a) Selecting some residents of a building to participate in a survey
    of recycling options based on the last digit of their phone
    number-This is an example of sampling bias as the last digit of the
    phone number may not be a good sampling criterion as there may only be
    five residents who have that digit, and there may be 200 different
    residents

    b) Deciding whether to create a new restaurant menu based on the
    responses of customers who returned a survey card-This is an example
    non-response bias, as the statement implies that there were people
    that did not return a survey card, as is usually the case with surveys
    that are taken home


    c) Polling members of a business association to gauge public reaction
    to a proposed new business tax-This is household bias as only polling
    members of a business association will exclude those who are not
    members of the association or do not own a business
     
  2. jcsd
  3. Apr 28, 2012 #2
    I need help please...its really semantics but I don't want to get this question wrong..
     
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