Deleted all non-essential items. Trying something completely different.
Initial spec file for DataAnalyst class - very basic
Uploaded file with sample data sets for tests
Added DataAnalyst class
Changed requirement in spec_helper to require data_analyst.rb
Deleted test "takes array as argument" and replaced with 'turns array into vector'
Changed #initialize() method: Accepts array or vector as argument and if array, converts to vector
Updated syntax changing deprecated should method to expect
Added requirement for data.rb, which provides example data for tests
Deleted tests that tested internal functionality; replaced with outcome-driven tests pertaining to differences in mean response times
Changed to require two arrays or vectors as arguments to #initialize
Added .equal_response_time? method testing equality of the means of two data sets
Added .mean_difference method that calculates difference between means of two samples
Added tests for methods pertaining to differences in the variability of two data sets
Added '.equal_variability?' method
Added '.sdev_difference' method
Extracted HypothesisTest module, removing .equal_response_time? and .equal_variability? - included HypothesisTest within DataAnalyst class
Added HypothesisTest module extracted from DataAnalyst class
Added hypothesis test module to spec_helper file
Added test for equal_response_time? method to spec file for HypothesisTest module