Question

The data shows the number of years that 30 employees worked for an insurance company before retirement.
is the population mean for the number of years worked, and
% of the employees worked for the company for at least 10 years. (Round off your answers to the nearest integer.)

Answer 1

Employee Number Years Worked
1 8
2 13
3 15
4 3
5 13
6 28
7 4
8 12
9 4
10 26
11 29
12 3
13 10
14 3
15 17
16 13
17 15
18 15
19 23
20 13
21 12
22 1
23 14
24 14
25 17
26 16
27 7
28 27
29 18
30 24

Answer 2

mean is 14.5

Answer 3

thank you @hayleighcarlson2016