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Chapter 8: Q.54 (page 498)

Plant managers are concerned that the number of accidents may be significantly higher during the midnight to8:00a.m. shift than during the 4:00p.m. to midnight shift. What would you tell them? Give appropriate statistical evidence to support your conclusion.

Short Answer

Expert verified

The peak of number of accidents is higher at 8:00 a.m. than the 4:00 p.m. So, it indicates that claim is absolutely correct.

Step by step solution

01

Given information 

Given in the question that, Plant managers are concerned that the number of accidents may be significantly higher during the midnight to8:00 a.m. shift than during the 4:00 p.m. to midnight shift.

02

Explanation

The data set is

HourNumber of accidents
1
5
2
8
3
17
4
31
5
24
6
18
7
12
8
7
9
1
10
0
11
2
12
14
13
21
14
12
15
10
16
1
17
0
18
1
19
3
20
21
21
23
22
18
23
11
24
2
03

Graph

The figure could be constructed as:

From the above plot,We can find that the peak of number of accidents is higher at 8:00 a.m. than the 4:00 p.m. So, it indicates that claim is absolutely correct.

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Most popular questions from this chapter

Auto emissions Refer to Exercise 6. Below your sketch, choose one value of x inside the shaded region and draw its corresponding confidence interval. Do the same for one value of x outside the shaded region. What is the most important difference between these intervals? (Use Figure 8.5, on page 474, as a model for your drawing.)

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