Statistical Process Control Assignment
Not what you're looking for?
I. (S6.10) A process that is considered to be in control measures an ingreidnet in ounces. Below are the last 10 samples (each of size n =5) taken.
(Sample numbers in the columns and individual observation results below)
1 2 3 4 5 6 7 8 9 10
10 9 13 10 12 10 10 13 8 10
9 9 9 10 10 10 11 10 8 12
10 11 10 11 9 8 10 8 12 9
9 11 10 10 11 12 8 10 12 8
12 10 9 10 10 9 9 8 9 12
a. What is the estimate of the process standard deviation?
b. What are the control limits for the mean chart? (assume 3 sigma limits)
c. What are the control limits for the range chart?
d. Is the process in control?
II. (S6.15) The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.
day defective
1 7
2 6
3 6
4 9
5 5
6 6
7 0
8 8
9 9
10 1
a. Construct a 3-sigma p-chart using this information
b. If the number of defectives on the next three days are 12, 5, and 13, is the process in control?
Purchase this Solution
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.