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  1. C

    Inefficient SPSS Macro

    I have details relating to over 700,000 customer contacts. Our customers may use more than one address (e.g. home and business) and more than one telephone number (e.g. mobile or landline). It is also possible that there may be more than one name (e.g. mis-spelling) recorded for a particular...
  2. C

    Compare Percentages

    I have some survey data and know the number and percentage of "yes" responses. How do I determine if any of the percentage yes regional responses are statistically different from the national yes response percentage. Thank you in anticipation.