1) Please provide at least two strategies to decrease the probability of False Alarm and briefly explain their advantages and disadvantages.

2) Please list the three major quality control methods.

3) A number of important properties are required for good point estimators. Please list two of the most important properties and briefly explain.

4) An x-bar control chart with 3-sigma control limits is used to monitor process mean. Inspection decision is made based on three successive samples using the following rules: Rule 1: If one or two or three sample means exceed either the upper or lower control limit. Rule 2: If three sample means fall on the same side of the center line. What is the overall type I error based on the two rules if the two rules are independent? (