class MoreMath::Sequence

def t_student(other)

instance and the +other+.
Returns the t value of the Student's t-test between this Sequence 
def t_student(other)
  signal = arithmetic_mean - other.arithmetic_mean
  noise = common_standard_deviation(other) *
    Math.sqrt(size ** -1 + size ** -1)
rescue Errno::EDOM
  0.0
end