In one word - Wow! If you want to get the best conclusions and predictions from data, Wizard is outstanding. You dont need to do the math, Wizard does all of that for you.
This is the very best data analysis software Ive seen. In short, start with a set of data (such as on a spreadsheet), and Wizard will allow you to draw relevant and practial conclusions from that data - better than anything else Ive used. Its a brand new Mac desktop app for doing multivariate statistics.
Its very easy to use an iTunes like interface to investigage subsets of data, and then graph the data. One really good value is the charts that use statistics to graph the underlying population given the data set and it shows the statistical uncertainty. This is incredibly useful, and done with only a few clicks.
Its incredibly easy to see how two or more variables interact, including graphs, confidence intervals, and much more. Wizard performs statistical tests without the user even needing to do anything to see if the variables are statistically correlated. Very cool!!
The sophistication is gold here. Its easy to use Wizard to build a multivariate model as the outcome of a number of explanatory variables. For example, its very easy to use labor data to model the number of years at one job as a function of level of education, gender, skill level, pay, and days absent, as one simple example. Wizard gives p values, numerous charts, and much more.
Wizard also has a Predict function that allows the user to make predictions of outcomes based on the dependent variables in the multivariate model that is designed. It even allows simultaneous multiple predictions working from the same model.
There is much more, such as doing arithmetic on columns, quantiles, rounding, exporting data or charts, to name a few. It will import many formats (but not .xlsx, that needs to be converted to .xls for Wizard) and export to the most common ones, too.
If you want one tool to give you the best results from your data, Wizard is the best app on the Mac App Store for the job.