Quantcast Random Sampling Without Extrapolated Deductions -Cont.

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MO-327 CHG 94-01
EXAMPLE
RANDOM SAMPLING WITH EXTRAPOLATED DEDUCTIONS
MONTHLY PAYMENT ANALYSIS FORM
QA PLAN #1 SPACE CLEANING
CONTRACT
Low
Cleaning
Sweep/Dust Emptying
Mop and/or
Dusting Walk-off
SUMMARY FOR THE PERIOD
Vacuum Containers Cleaning
Mats
1 NOV 94 THROUGH 30 NOV 94
20%
20%
10%
50%
Relative Value of Services (from PRS)
A.
$ 3,500.00
$ 1,400.00 $1,400.00 % 700.00
Cost of Services (Schedule of
B.
Deductions, Item 1 x A/100)
9,500
9,500
9,500
9,500
C.
Number Scheduled for Completion
$
.368
%
.147 $
.147 $ .074
D.
Cost per Service (B/C)
212
212
212
212
Sample Size (Normal)
E.
21
17
29
13
Number in Sample Observed Unsat
F.
13.68% 6.13%
8.02%
9.91%
Observed Defect Rate (ODR) (F/E x 100)
G.
1.59% 1.17%
1.31%
1.38%
H.
Adjustment Factor (from table)
12.09% 4.96%
6.71%
8.53%
I.
Defect Rate (G - H)
Extrapolated Number of Defects
J.
471
1,148
637
810
((C x I)/100) [round down to whole number]
93.63 $ 168.75 $ 34.85
$ 298.08 $
K.
Value of Unsat Performed Work (J x D)
Validated Customer Complaints (# Unsat)
0
10
O
7
L.
0
0
0
2
Unscheduled Inspections (# Unsat)
M.
Deduct for Liquidated Damages
N.
$
.77
$
.39 $
.42 $
.16
((F + L + M) x D x .1)
Number of Services Reworked
O.
O
O
O
1
(1) Sampled Services
0
10
0
7
(2) Customer Complaints
0
(3) Unscheduled I nspections
0
0
1
Payment for Rework
P.
$
0
$
1.47
$
0
$
.66
((O(1) + O(2) + O(3)) x D)
Other Adjustments
Q.
$
0
$
0
$
0
$
0
(" - ") indicates a deduction)
$ 298.85
$ 92.55 $ 169.17 $ 34.35
R.
Total Deductions (K + N - P + Q)
TOTAL PAYMENT DEDUCTIONS = $ 594.92
DATE
AUTHORIZED SIGNATURE
G-6





 


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