Question 1: Consider the data given below:

Sample number	Wrong account numbers
1	12
2	15
3	10
4	3
5	9
6	19
Total	68

Calculate the defective proportion, standard deviation, upper control limit and lower control limit.

Question 2: Describe how decision tree helps in capacity decisions.

Please write the answer plag free and please write the answer step-by-step the answer should be in your own words