For Exercises 15–18, do the following:

  1. Check the normality conditions.
  2. State the hypotheses.
  3. Find and the rejection rule.
  4. Calculate .
  5. Compare with . State the conclusion and the interpretation.

Question 9.282

16. Test whether the population proportion differs from 0.3. A random sample of size 100 yields 25 successes. Let level of significance .