title: python, find confidence interval around median
body: <p>How do I find confidence interval around median for my data in python?</p>
  
  <p>Say I have array  </p>
  
  <pre><code>a = np.array([24, 38, 61, 22, 16, 57, 31, 29, 35])
  </code></pre>
  
  <p>I would like to find 80% confidence interval around median. How do I do it in python?</p>