Question: Question: Consider the claim that the average collision hour at the time when the data were collected was equal to 15 hours. Use the variable
Question: Consider the claim that the average collision hour at the time when the data were collected was equal to 15 hours. Use the variable "Collision Hour" to test this claim. (Use the 5% level of significance).
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This is the data numbers for collision hour.
11
20
21
14
13
20
10
12
16
16
12
7
10
16
12
15
14
17
8
11
13
8
15
16
11
17
14
16
17
17
16
17
3
7
15
14
16
9
7
17
11
20
12
18
17
7
12
14
8
13
15
9
10
11
17
16
9
13
11
19
18
18
23
14
17
17
23
8
16
8
17
14
12
12
6
16
15
20
15
17
16
11
23
4
9
22
17
1
7
11
10
15
15
22
13
10
17
17
22
14
15
0
15
11
22
18
21
10
15
1
13
22
11
11
8
20
6
16
16
3
12
9
15
19
16
7
18
15
16
22
5
16
17
21
9
15
12
13
14
18
15
13
18
1
20
1
16
8
16
15
10
9
16
16
12
12
17
22
13
7
8
12
20
16
20
17
4
18
16
18
10
11
17
17
8
0
18
15
8
3
19
12
19
8
14
17
13
13
16
16
11
16
5
10
14
6
17
10
16
16
13
18
13
13
12
11
16
21
16
19
9
21
17
11
11
20
12
15
10
17
13
1
7
16
6
22
15
17
15
18
15
17
17
12
12
18
21
14
17
11
12
9
22
21
13
15
7
18
3
18
2
20
14
14
14
22
15
17
20
18
7
16
21
23
18
12
10
10
7
9
7
8
17
8
0
16
9
0
11
17
18
14
9
3
17
20
20
21
6
19
15
23
13
1
6
0
17
19
15
6
16
7
23
15
13
11
17
8
17
17
22
12
11
16
10
16
8
6
14
11
19
17
21
15
12
21
17
10
12
14
17
9
9
9
16
11
14
6
11
15
13
16
11
12
16
15
17
16
15
20
15
14
18
18
22
12
15
8
9
15
1
15
12
23
15
8
17
13
13
4
19
16
22
8
19
15
13
10
22
22
12
17
19
15
12
17
10
16
15
18
15
18
14
15
7
10
21
13
22
10
22
15
12
11
12
6
11
19
11
18
12
4
14
17
16
8
0
23
22
10
15
17
16
17
19
8
20
19
7
17
0
2
12
16
18
12
10
18
8
9
15
16
11
15
15
10
19
13
18
16
14
15
16
21
10
0
12
20
17
17
17
16
6
19
15
14
18
16
11
4
16
17
12
15
9
15
19
13
15
16
10
15
21
20
7
13
18
12
20
8
0
17
16
2
9
11
16
17
9
11
11
18
11
12
11
15
8
17
16
16
15
14
16
12
19
15
16
14
16
9
18
11
10
15
13
20
18
14
14
15
8
7
14
15
8
12
18
16
9
8
13
14
16
17
9
19
18
9
2
22
13
20
9
12
8
10
10
7
16
15
22
3
16
14
17
15
12
18
15
13
9
8
11
17
23
17
12
12
18
16
1
17
13
15
8
7
15
8
10
13
11
17
15
15
9
20
10
12
15
13
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