For Exercises 9–16, perform the small-sample sign test for the population median. Use the following steps:

  1. Use Appendix Table I to find the value of .
  2. State the rejection rule.
  3. Calculate .
  4. Provide the conclusion and the interpretation of the hypothesis test.

Question 14.23

15. Test whether the population median is less than 400, using level of significance .

105 219 100 136 345 996 100 400 102 100 229 331