Question

Employee Years Employed Salary 1 27 $65,487 2 20 $46,184 3 0 $32,782 4 12 $54,899...

Employee Years Employed Salary
1 27 $65,487
2 20 $46,184
3 0 $32,782
4 12 $54,899
5 7 $34,869
6 8 $35,487
7 5 $26,548
8 15 $32,920
9 5 $29,548
10 6 $34,231
11 0 $23,654
12 9 $39,331
13 6 $36,512
14 3 $35,467
15 25 $68,425
16 9 $35,468
17 4 $36,578
18 18 $39,828
19 6 $36,487
20 19 $37,548
21 3 $31,528
22 5 $34,632
23 14 $46,211
24 2 $29,876
25 6 $43,674
26 18 $38,985
27 25 $53,234
28 18 $51,698
29 22 $41,889
30 21 $38,791
31 22 $69,246
32 6 $48,695
33 9 $34,987
34 0 $28,985
35 6 $35,631
36 20 $54,679
37 9 $39,743
38 9 $41,255
39 9 $36,431
40 0 $26,578
41 15 $47,536
42 6 $36,571
43 12 $56,326
44 7 $31,425
45 6 $24,749
46 1 $26,452

The human resources manager of DataCom, Inc., wants to examine the relationship between annual salaries (Y) and the number of years employees have worked at DataCom (X). These data have been collected for a sample of employees and are given above.

1. Create a scatterplot of the annual salaries (Y) versus the number of years employees have worked (X). Does it appear that the relationship is linear?

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Answer #1

19 37548.00 3 31528.00 534632.00 14 46211.00 2 29876.00 6 43674.00 18 38985.00 25 53234.00 18 51698.00 22 41889.00 21 38791.00 22 69246.00 6 48695.00 9 34987.00 0 28985.00 61 35631.00 20 54679.00 9 39743.00 9 41255.00 9 36431.00 Salary 24 80000.00 26 27 28 70000.00 50000.00 30 30000.00 o 20000.00 0.00 15 20 25 30 37 39

The salaries are increasing with increasing number of years.

From the scatter plot and the trend line, it appears that relationship is linear

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