Homework assignment 7(business statistics)
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MAT 510 – Homework Assignment |
Homework Assignment 7
Due in Week 8 and worth 30 points
The experiment data in below table was to evaluate the effects of three variables on invoice errors for a company. Invoice errors had been a major contributor to lengthening the time that customers took to pay their invoices and increasing the accounts receivables for a major chemical company. It was conjectured that the errors might be due to the size of the customer (larger customers have more complex orders), the customer location (foreign orders are more complicated), and the type of product. A subset of the data is summarized in the following Table.
Table: Invoice Experiment Error
|
Customer Size |
Customer Location |
Product Type |
Number of Errors |
|
- |
- |
- |
15 |
|
+ |
- |
- |
18 |
|
- |
+ |
- |
6 |
|
+ |
+ |
- |
2 |
|
- |
- |
+ |
19 |
|
+ |
- |
+ |
23 |
|
- |
+ |
+ |
16 |
|
+ |
+ |
+ |
21 |
Customer Size: Small (-), Large (+)
Customer Location: Foreign (-), Domestic (+)
Product Type: Commodity (-), Specialty (=)
Reference: Moen, Nolan, and Provost (R. D. Moen, T. W. Nolan and L. P. Provost. Improving Quality through Planned Experimentation. New York: McGraw-Hill, 1991)
Use the date in table above and answer the following questions in the space provided below:
1. What is the nature of the effects of the factors studied in this experiment?
2. What strategy would you use to reduce invoice errors, given the results of this experiment?
Type your answers below and submit this file in Week 8 of the online course shell:
MAT 510
–
Homework Assignment
Homework A
ssignment
7
Due in
Week
8 and worth 30 points
The
experiment data in below table was to evaluate the effects of three variables on invoice errors
for a
company
. Invoice errors had been a major contributor to lengthening the time that customers took to pay
their invoices and increasing the accounts receivables for a major chemical company. It was conjectured
that the errors might be due to the size of the custome
r (larger customers have more complex orders), the
customer location (foreign orders are more complicated), and the type of product. A subset of the data is
summarized in the following Table.
Table: Invoice Experiment Error
Customer Size
Customer
Location
Product Type
Number of Errors
-
-
-
15
+
-
-
18
-
+
-
6
+
+
-
2
-
-
+
19
+
-
+
23
-
+
+
16
+
+
+
21
Customer Size: Small (
-
), Large (+)
Customer Location: Foreign (
-
), Domestic (+)
Product Type: Commodity (
-
), Specialty (=)
Reference: Moen, Nolan, and Provost (R. D. Moen, T. W. Nolan and L. P. Provost.
Improving Quality
through Planned Experimentation
.
New York: McGraw
-
Hill, 1991)
Use the date in table
above
and answer the following questions
in the space provided below:
1.
What is the nature of the effects of the factors studied in this experiment?
2.
What strategy would you use to reduce invoice errors, given the results of this experiment?
Type your answers below and submit this file
in Week 8 of
the online course shell:
MAT 510 – Homework Assignment
Homework Assignment 7
Due in Week 8 and worth 30 points
The experiment data in below table was to evaluate the effects of three variables on invoice errors for a
company. Invoice errors had been a major contributor to lengthening the time that customers took to pay
their invoices and increasing the accounts receivables for a major chemical company. It was conjectured
that the errors might be due to the size of the customer (larger customers have more complex orders), the
customer location (foreign orders are more complicated), and the type of product. A subset of the data is
summarized in the following Table.
Table: Invoice Experiment Error
Customer Size Customer Location Product Type Number of Errors
- - - 15
+ - - 18
- + - 6
+ + - 2
- - + 19
+ - + 23
- + + 16
+ + + 21
Customer Size: Small (-), Large (+)
Customer Location: Foreign (-), Domestic (+)
Product Type: Commodity (-), Specialty (=)
Reference: Moen, Nolan, and Provost (R. D. Moen, T. W. Nolan and L. P. Provost. Improving Quality
through Planned Experimentation. New York: McGraw-Hill, 1991)
Use the date in table above and answer the following questions in the space provided below:
1. What is the nature of the effects of the factors studied in this experiment?
2. What strategy would you use to reduce invoice errors, given the results of this experiment?
Type your answers below and submit this file in Week 8 of the online course shell: