A project manager at System Design Corporation has collected the following data
ID: 3225100 • Letter: A
Question
A project manager at System Design Corporation has collected the following data on the size of software programs and the length of programming time. The company is bidding on a new system that is estimated to consist of 250000 lines of code. Use the data to find the correlation function of coding time to the program size and estimate the number of days it would take to code the system.
Module
Size in 1000 lines of code (KLOC)
Number of days to code
1
160
68
2
158
66
3
148
70
4
135
59
5
178
72
6
170
68
7
158
64
8
138
65
9
200
70
10
195
68
11
189
65
12
173
68
13
159
70
14
163
71
15
150
66
16
140
65
17
206
73
18
144
64
19
157
70
20
183
74
21
195
75
22
190
77
23
182
69
24
152
65
25
174
69
Module
Size in 1000 lines of code (KLOC)
Number of days to code
1
160
68
2
158
66
3
148
70
4
135
59
5
178
72
6
170
68
7
158
64
8
138
65
9
200
70
10
195
68
11
189
65
12
173
68
13
159
70
14
163
71
15
150
66
16
140
65
17
206
73
18
144
64
19
157
70
20
183
74
21
195
75
22
190
77
23
182
69
24
152
65
25
174
69
Explanation / Answer
Resuls of regression analyssi are as follows from where we have the estimated regression equation to estimate the number of days it would take to code the system as
Number of days to code=46.42 + 0.13 *(Size in 1000 lines of code (KLOC))
Coefficients Standard Error t Stat P-value Intercept 46.41989189 5.041618433 9.207339372 3.54641E-09 Size in 1000 lines of code (KLOC) 0.131165762 0.029814863 4.399341396 0.000208073Related Questions
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