Results 1 to 2 of 2

Math Help - survey question

  1. #1
    Newbie
    Joined
    Apr 2010
    Posts
    21

    survey question

    (a) A TV news bulletin asked viewers to phone in their response to the question: “Should asylum seekers who break out of detention be penalised for doing so?” Respondents dialled different numbers to register “yes” or “no” answers.

    (i) Identify at least two sources of bias in this survey.

    (ii) Why would it be wrong for the TV station to interpret the results of the survey as an indication of “public opinion”?

    (b) Giving brief reasons in each case, indicate whether MAS183 students are likely to be representative of Murdoch University students in relation to –

    (i) attitudes to public policy on climate change; and

    (ii) brand of mobile phone.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member Sambit's Avatar
    Joined
    Oct 2010
    Posts
    355
    (a)(i)
    Coverage bias: A telephone survey suffer from coverage bias because it cannot include viewers without telephones.
    Voluntary response bias: Voluntary response bias occurs when sample members are self-selected volunteers. The persons who have a strong opinion (who feel strongly that they should answer the question) is likely to call. The resulting sample tends to overrepresent individuals who have strong opinions.

    (ii) Apart from the biases stated above, the resulting opinion can not be taken as "public opinion" since the number of people who call there is a very small part of the total population.

    (b)-- Try yourself.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Survey Development and Simplification
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: July 15th 2010, 01:40 PM
  2. Survey Project
    Posted in the Statistics Forum
    Replies: 0
    Last Post: January 21st 2010, 08:20 AM
  3. How large should my survey be?
    Posted in the Statistics Forum
    Replies: 1
    Last Post: April 29th 2008, 04:00 AM
  4. Survey of Mathmatics Question
    Posted in the Discrete Math Forum
    Replies: 3
    Last Post: June 10th 2007, 08:14 PM
  5. Survey
    Posted in the Algebra Forum
    Replies: 1
    Last Post: March 13th 2006, 07:30 AM

Search Tags


/mathhelpforum @mathhelpforum