Academic statistics expert is here. I am an academic statistician with major in SPSS and advanced statistics at post-graduate level. Have assisted 7 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, time series analysis, forecasting, factor analysis, cluster analysis and so on], interpret them and justify the usability of different methods. I can run any analysis in SPSS/Excel 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 some previous projects regarding fashion analysis in different season, possible trend analysis for different products (i.e. Smartphone models). For you project if you have more data for each client except the sale size, this would be more interesting. Plz let me know how these values you got and what they mean. 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