OSH 200 - Important Assignment. Need Detailed Answers - 4-5 Hours Max
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Assignment4-SPCandCorrelation.docxOSH 200 –Measures of Safety Performance
Assignment Four
XYZ Corp.’s # of Management Safety Walks By Month and Corresponding # of Recordables
Month / Year # of Walks #Recordables
|
Jan 2014 |
23 |
6 |
|
Feb |
20 |
7 |
|
March |
16 |
5 |
|
April |
15 |
10 |
|
May |
20 |
10 |
|
June |
13 |
12 |
|
July |
12 |
10 |
|
August |
15 |
7 |
|
September |
20 |
9 |
|
October |
23 |
8 |
|
November |
15 |
10 |
|
December |
10 |
23 |
|
Jan 2015 |
25 |
22 |
|
Feb |
37 |
28 |
|
March |
30 |
12 |
|
April |
28 |
14 |
|
May |
27 |
13 |
|
June |
25 |
12 |
|
July |
25 |
11 |
|
August |
31 |
8 |
|
Sept |
37 |
12 |
|
Oct |
32 |
11 |
|
Nov |
20 |
6 |
|
Dec |
18 |
5 |
1. Calculate the following for each set (column) of data:
a. Mean
b. Median
c. Mode
d. Range
e. Standard Deviation
2. Calculate the correlation coefficient between # of recordables and # of management walks.
3. Construct statistical process control chart for each set of data.
4. Can you reach any conclusions about the effectiveness of management walks?
5. What might you do further statistically investigate the effectiveness of management walks?
