what data do we use to find correlations with percentages? how to find the correlation between devices which statistical tests can you conduct on data that are not statistically valid when is a chi squared test valid what is a valid statistical test to use for this data? what type of data is used for this statistical test? how to test if a device makes no difference how to find correlation between different devices how do i find correlation can a chi squared test be used for a null hypothesis how to find correlations how to use chi squared and correlation in statistics what type of data is used to find correlations how is data structured which data structures would be used to test if the type of device used makes no difference to the outcome? how does the data structure work in statistics which statistical test is appropriate for the study of the null hypothesis? how to test for null hypothesis what would be a valid test to use for this scenario? what structure can be used in a statistical study to test correlation how do you find correlations in mobile data