The CIO of an IT company would like to investigate how a software developer's work experience (in number of years), professional certifications (number of certificates), and knowledge of various computer languages (number of programming languages) contribute to his/her work performance. The work performance is measured on a scale of 1 to 1000, so the higher one's score, the better his/her work performance. He collects data from 20 software developers in his company, which is provided in the table below. Copy and paste this data into an Excel file to get started.
Employee ID | Years of experience | Num of certificates | Num of progLang | Performance
------------|---------------------|------------------------|------------------|--------------
1 | 27 | 3 | 8 | 880
2 | 11 | 1 | 2 | 686
3 | 6 | 2 | 1 | 681
4 | 21 | 3 | 4 | 877
5 | 26 | 3 | 4 | 975
6 | 21 | 3 | 4 | 902
7 | 18 | 3 | 3 | 900
8 | 15 | 2 | 5 | 882
9 | 14 | 2 | 3 | 775
10 | 5 | 1 | 3 | 650
11 | 17 | 2 | 5 | 908
12 | 14 | 2 | 4 | 687
13 | 15 | 3 | 4 | 891
14 | 7 | 2 | 3 | 566
15 | 5 | 3 | 1 | 959
16 | 13 | 2 | 5 | 793
17 | 11 | 2 | 4 | 778
18 | 31 | 3 | 7 | 975
19 | 16 | 2 | 5 | 846
20 | 12 | 3 | 6 | 779