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Thread: Which comparative stats test to use?

  1. #1
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    Which comparative stats test to use?

    Hi there,

    I have had members of staff from two different departments complete surveys on their opinions of waiting times:

    Example question:
    Do you think waiting times have: increased, decreased, stayed the same?

    My results:
    Department A: 30% staff felt waiting times had decreased.
    Department B: 50% staff felt waiting times had decreased.

    I want to compare the opinions of department A to department B. My confidence intervals overlap so I thought I could do a t-test to prove that there is a statistical difference between the data sets. Would this be a suitable test to do? If yes, what type of t-test?

    Thanks!
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  2. #2
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    Re: Which comparative stats test to use?

    Or would a Chi-squared test be more appropriate? As my data is categorial e.g. agree or disagree and my quantative values are proportions of each category?
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