.. _AQweek5:

Week 5 Attendance Quiz Hints
-----------------------------

**AQ04_8:**

#. See :ref:`confidence`. From Table 4.2, :math:`Z_{\alpha/2}` for :math:`C
   = 0.85` is 1.44. Use the equation above Figure 4.15 to find the interval.

#. See :ref:`significance`. Remember that the null hypothesis states that
   the groups of interest are the same, while the alternate hypothesis state
   that the groups perform differently in some way.