Added files for new modules (including RSpec tests for each)
Began switching confidence interval methods from Calculator to ConfidenceInterval module
Updated spec_helper to recognize new files
Modified calculator.rb to find accurate fences
Initial specs for the TestStatistic class - will need cleanup and more tests will need to be added
Added TestStatistic class, helper module, and spec; TestStatistic functions as a number with attributes
Put test data in its own file.
Changed distribution of TestStatistic to symbols.
Finished ConfidenceInterval module and updated spec file to reflect new structure.
Put preliminary tests for HypothesisTest module.
Put data for tests in its own file (accidentally left out of previous commit)
Wrote test 'returns results as a hash with keys :left_tail and :right_tail'
Added test 'conducts tests for mean by default'
Added test 'performs two one-tailed tests by default'
Added test 'returns h0, h1, significance level, p, and result for each test'
Changed test so :significance_level will be specified in outer hash instead of in each individual test
Added test 'establishes a 0.05 significance level by default'
Added another data set to the data set file
Added test 'conducts a set of tests for two means with one h0 rejected'
Added test 'adjusts results according to significance level'
Changed == to eql() to satisfy Sublime's syntax tyranny
Added test 'conducts a set of tests for two means with h0 not rejected'
Added test 'conducts a set of tests for two proportions with one h0 rejected'
Added new binomial datasets
Added test 'conducts a set of tests for two proportions with h0 not rejected'
Added test 'conducts a set of tests for two variances with h0 not rejected'
Added test 'conducts a set of tests for two variances with one h0 rejected'