results.txt

players / spoken to
         1      2      3      4      5      6      7
  7     66%    40%    80%    60%    100%
  8     71%    48%    86%    71%    100%
  9     75%    53%    89%    79%    100%
  10    67%    42%    77%    60%    88%    76%    100%
  11    70%    47%    82%    67%    92%    83%    100%
  12    73%    51%    85%    72%    94%    88%    100%
  13    66%    42%    76%    59%    85%    73%    93%
  14    69%    46%    80%    65%    88%    78%    95%
  15    71%    49%    82%    69%    91%    83%    97%

# NB: No results for speaking to 8 people at 13+ players, it's a _very_ slow calculation. 9 players is 100% though.

script.rb

# Run me on https://replit.com/languages/ruby
require 'pp'

results = []

1.upto(7) do |speak_to|
  7.upto(15) do |player_count|
    
    evils = case player_count
      when (5..9); 2
      when (10..12); 3
      when (13..15); 4
    end
    
    more_evil = 0
    more_good = 0
    1.upto(player_count-1).to_a.permutation(speak_to) do |values|
      speak_to_good, speak_to_evil = values.partition{|value| value > evils }
      if speak_to_good.size > speak_to_evil.size
        more_good += 1
      else
        more_evil += 1
      end
    end
    
    results << [player_count, speak_to, more_good.to_f / (more_good + more_evil)]
    pp results.last
  end
end
    
pp results