1. Consider the output of a paper mill: the product appears at the end of a web and is rolled onto a spool called a reel. Every reel is examined for the number of blemishes, which are imperfections.

Reel	Number of Blemishes
1	4
2	5
3	5
4	10
5	6
6	5
7	6
8	3
9	6
10	6
11	7
12	7

What would be a three-sigma upper control limit for c-chart? (Round off to two decimal places)

2. Consider the output of a paper mill: the product appears at the end of a web and is rolled onto a spool called a reel. Every reel is examined for the number of blemishes, which are imperfections.

Reel	Number of Blemishes
1	4
2	5
3	5
4	10
5	6
6	5
7	6
8	3
9	6
10	6
11	7
12	23

What would be a a three-sigma lower control limit for c-chart? (Round off to two decimal places).