The assistant to the regional manager of a mid-size paper company wants to know if his subordinates waste time on their

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The assistant to the regional manager of a mid-size papercompany wants to know if his subordinates waste time on theirpersonal email accounts instead of using their work email. Toaddress the question, he has his cousin who works on his beet farmcollect data on each of the 20 employees. The data below shows theaverage number of emails each employee (subordinate) sends in aweek for both personal and work email accounts.
Employee
Personal
Work
Difference
1
19
21
-2
2
16
20
-4
3
17
20
-3
4
14
21
-7
5
17
26
-9
6
16
25
-9
7
19
17
2
8
18
23
-5
9
15
23
-8
10
18
24
-6
11
15
25
-10
12
16
17
-1
13
16
25
-9
14
14
24
-10
15
13
26
-13
16
17
23
-6
17
19
23
-4
18
17
23
-6
19
14
23
-9
20
13
22
-9
Average
16.15
22.55
-6.4
St. Dev.
1.93
2.58
3.63
The assistant to the regional manager can sometimes be confusingin what he wants, so the explicit research question is givenbelow.
Research question: Doemployees send more emails on average using their personal emailthan their work email?