Discuss the following:
Table: Covers Statistical Quality Control
|
|
Outside Diameter (millimeters)
|
|
|
|
Time
|
1
|
2
|
3
|
4
|
5
|
|
8:00
|
87.1
|
87.3
|
87.9
|
87.0
|
87.1
|
|
8:30
|
86.9
|
88.5
|
87.6
|
87.5
|
87.4
|
|
9:00
|
87.5
|
88.4
|
86.9
|
87.6
|
88.2
|
|
9:30
|
86.0
|
88.0
|
87.2
|
87.6
|
87.1
|
|
10:00
|
87.1
|
87.1
|
87.1
|
87.1
|
87.1
|
|
10:30
|
88.0
|
86.2
|
87.4
|
87.3
|
87.8
|
Q1: A - Determine the control limits for the mean and range
B - Plot the control limits for the mean outside diameter and the range
C - Are there any points on the mean or the range chart that are out of control? Comment on the chart.
Table: Covers Time Series and Forecasting
|
Year
|
Price
|
|
1990
|
12.9135
|
|
1991
|
16.8250
|
|
1992
|
20.6125
|
|
1993
|
20.3024
|
|
1994
|
18.3160
|
|
1995
|
27.7538
|
|
1996
|
29.0581
|
|
1997
|
36.0155
|
|
1998
|
40.6111
|
|
1999
|
35.0230
|
|
2000
|
49.5625
|
Q2: Listed above is the selling price for a share of PepsiCo, Inc. at the close of the year
A - Plot the data
B - Determine the least squares trend equation
C - Calculate the points for years 1993 and 1998