Roberson Robotics outsourced component BF-653, a key component of many of its products. At the...
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Accounting
Roberson Robotics outsourced component BF-653, a key component of many of its products. At the time, CFO Sam Winters concluded that outsourcing was the correct decision, but she decided to revisit that decision after overhearing some conversations on the factory floor and in the cafeteria. Based on these conversations, she has gathered information about the materials quantity variance for the part, as well as on-time delivery information of the part from the supplier and on-time delivery of the finished products to customers. Roberson Robotics uses a just-in-time inventory system, so it receives multiple shipments of BF-653 each day. Winters has asked you to examine the data and provide insights about the continued desirability of outsourcing component BF-653
Prepare a scatterplot of late deliveries from the supplier over time and a scatterplot of missed customer delivery dates over time. What do you learn from these graphs?
Calculate the percentage of late deliveries from the supplier and the percentage of missed customer delivery dates.
Calculate the proportion of unfavorable materials quantity variances. How has the proportion of favorable to unfavorable variances changed over time? What do you infer about the quality of the outsourced component BF-653?
What other information would you like to examine before providing your insights about the outsourcing decision to Winters?
Week
Total number of BF-653 shipments received
Number of late BF-653 shipments
Total number of customer shipments
Number of missed customer delivery dates
1
34
5
138
1
2
15
6
169
2
3
22
3
183
7
4
10
4
108
2
5
23
5
60
8
6
30
2
132
1
7
10
4
25
4
8
35
3
47
5
9
33
0
118
3
10
37
6
109
5
11
32
0
32
8
12
19
2
149
5
13
24
6
125
5
14
23
0
29
7
15
23
2
169
0
16
21
6
98
4
17
33
0
188
3
18
38
0
152
5
19
25
6
161
0
20
32
4
135
0
21
17
5
106
6
22
37
4
163
0
23
11
3
64
5
24
22
2
167
1
25
38
5
183
3
26
11
2
37
5
27
16
4
28
3
28
17
5
172
6
29
16
5
152
0
30
26
5
139
8
31
23
1
164
4
32
18
2
114
3
33
33
0
146
8
34
31
6
166
8
35
26
5
170
5
36
15
5
168
0
37
11
3
81
7
38
19
2
171
3
39
12
5
25
6
40
10
0
48
7
41
28
6
115
1
42
13
3
90
6
43
32
3
138
4
44
36
4
151
6
45
30
4
53
7
46
17
3
86
6
47
28
2
132
8
48
16
6
146
5
49
14
6
25
6
50
26
2
200
3
51
16
0
167
1
52
15
1
190
8
53
34
0
100
3
54
39
4
91
4
55
19
3
83
3
56
14
1
171
3
57
13
4
46
8
58
25
5
46
7
59
30
5
153
5
60
36
0
108
7
61
22
2
116
8
62
18
6
92
6
63
32
4
135
5
64
30
5
141
3
65
10
0
70
2
66
36
0
54
4
67
13
4
169
2
68
40
2
80
8
69
18
3
110
3
70
37
3
178
6
71
36
2
146
2
72
38
9
132
1
73
19
3
112
0
74
10
6
111
3
75
30
5
132
3
76
36
9
70
0
77
22
12
109
3
78
18
12
20
2
79
17
8
100
0
80
35
8
129
7
81
10
4
68
6
82
39
11
157
6
83
27
9
31
7
84
21
7
117
6
85
33
6
83
2
86
34
5
162
12
87
12
3
113
10
88
17
6
161
20
89
10
4
148
7
90
34
12
55
6
91
24
8
28
18
92
15
4
112
19
93
34
11
160
7
94
25
4
85
15
95
23
9
36
19
96
17
4
34
15
97
34
8
186
8
98
26
10
196
15
99
25
10
148
20
100
32
12
102
9
101
35
10
29
10
102
24
12
63
4
103
19
12
30
12
104
30
14
133
20
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