# File lib/abingo/statistics.rb, line 56
  def describe_result_in_words
    begin
      z = zscore
    rescue
      return "Could not execute the significance test because one or more of the alternatives has not been seen yet."
    end
    p = p_value

    words = ""
    if (alternatives[0].participants < 10) || (alternatives[1].participants < 10)
      words += "Take these results with a grain of salt since your samples are so small: "
    end

    alts = alternatives - [best_alternative]
    worst_alternative = alts.first

    words += "The best alternative you have is: [#{best_alternative.content}], which had "
    words += "#{best_alternative.conversions} conversions from #{best_alternative.participants} participants "
    words += "(#{best_alternative.pretty_conversion_rate}).  The other alternative was [#{worst_alternative.content}], "
    words += "which had #{worst_alternative.conversions} conversions from #{worst_alternative.participants} participants "
    words += "(#{worst_alternative.pretty_conversion_rate}).  "

    if (p.nil?)
      words += "However, this difference is not statistically significant."
    else
      words += "This difference is #{PERCENTAGES[p]} likely to be statistically significant, which means you can be "
      words += "#{DESCRIPTION_IN_WORDS[p]} that it is the result of your alternatives actually mattering, rather than "
      words += "being due to random chance.  However, this statistical test can't measure how likely the currently "
      words += "observed magnitude of the difference is to be accurate or not.  It only says \"better\", not \"better "
      words += "by so much\"."
    end
    words
  end