1. a) For the questions in the results of the customer satisfaction survey where there is a range of answers from 0-10, the descriptive statistics shall include the following information:

   1. 1) The total number of responses and non-responses (N/As);
   2. 2) The number and percentage of respondents that answered in each response category;
   3. 3) The mean response;
   4. 4) The median response;
   5. 5) The modal response; and
   6. 6) The range of responses.

2. b) Jurisdictional entities shall also present cross-tabulations indicating statistically significant relationships between rating questions and categorical questions to show how respondents in different categories rated the questions, as follows:

   1. 1) The number and percent of responses in each demographic category; and
   2. 2) A ranking from highest to lowest of the mean, median, modal and range of responses for each demographic type.
3. c) Statistically significant cross-tabulated statistics describing responses by income shall present the income as the income per household. Jurisdictional entities shall only report relationships with a statistically significant correlation of, and/or differences of, .5 or higher at the .05 probability level.

(Source: Added at 24 Ill. Reg. 12914, effective September 1, 2000)