Question 8.23

8.23 Significance test for nonconforming switches.

Refer to the previous exercise. In Example 5.5 (pages 247–248), we assumed that the proportion of nonconforming switches in the large shipment was 8%.

  1. Give the null and alternative hypotheses for performing a significance test in this setting.
  2. Find the test statistic.
  3. Find the -value.
  4. Write a short summary of your conclusion.

8.23

(a) . (b) . (c) . (d) The data do not show that the proportion of nonconforming switches is different than the assumed 8%.