Academic statistics expert is here. I am an academic statistician with major in SPSS and advanced statistics at post-graduate level. Have assisted 8 PhDs, many MBA and MS thesis works for statistical analysis and writing, worked as data analyst for 2 business firms. My responsibilities; manage data to use them in SPSS-Excel-SAS software, analyze them [i.e. T-test, Descriptive, frequency, normality test, hypothesis test (Chi test, U-test), ANOVA, MNCOVA, regression (i.e. Linear, binary logistic), factor analysis, cluster analysis and so on], interpret them and justify the usability of different methods. I can run any analysis in SPSS platform, would explain every bit of work and method used in the analysis. I have international publications based on statistical results. Regarding, your project i can be a best fit, as i did many survey and research data analysis, besides; as you already using Poisson Regression, this based on the count variable, but for probability plot other regression such as multnominal is also an effective solution. In addition, you can also test some hypothesis using other tools if needed. Please check my profile feedback regarding SPSS and Statistics projects. If we discuss, i think you would find my previous experience perfect for your projects. So, let us discuss 1st then decide. I ensure you would not regret and would not waste your time. Hope to have a reply, thanks in advance, Regard; Labib