Question

"This question and the three which follow it are based on the prompt below:Rockstar Roofers is the national association of roofing professionals - construction workers who build new roofs and also tear down a replace old roofs. The association monitors annual injuries among its 3,117 workers. This has been a year plagued with injuries. July was the peak month of injuries, where 400 roofers were injured. By the end of the year, 892 roofers had been injured.In the peak month of injuries, what is the incidence rate of injuries among roofers?Answers need to be given with three decimal places. Round up if necessary."

Answer 1

Answer: 12.8

Explanation:

The OSHA Recordable Incident Rate (or Incident Rate) is calculated thus:

Number of recordable cases multiplied by 200,000 divided by the number of labor hours at the company.

In July, the peak month of injury, 400 workers were injured

Total number of workers in the company = 3,117

The number of labour hours at the company= (3,117×40 hours per week×50 weeks per year) 6,234,000

Incidence rate of roofers in July = 400×200,000/6,234,000= 80,000,000/6,234,000=

12.83285210=

12.833

~12.8

Answer 2

The incidence rate of injuries among the roofers are 12.833 (approx.), when the 892 roofers had been injured.

What is incidence rate?

Incidence is a measurement of illness that permits peoples to ascertain a person's chance of existing analysed with an illness during a granted period of time.

The formula of  Occupational Safety and Health Administration rate (OSHA) is:

$\text{(OSHA)}=\dfrac{ \text{Number of Recordable Cases}\times 200,000}{\text{The Number of Labor Hours at the Company}}$

Computation of incidence rate:

According to the given information,

In July, the peak month of injury\ recoverable cases= 400 workers.

Total amount of workers in an association = 3,117 workers.

Then the number of labor hours at the company:

$=\text{Total Workes}\times \text{40Hours Per Week }\times 50\text{ Weeks Per Year}\\\\=3,117\times40 \times 50\\\\=6,234,000$

Now, apply the given values in the above formula, we have:

$\text{(OSHA)}=\dfrac{ \text{Number of Recordable Cases}\times 200,000}{\text{The Number of Labor Hours at the Company}}$

$\text{(OSHA)}=\dfrac{400\times 200,000}{6,234,000}\\\\\\\text{(OSHA)}= \dfrac{80,000,000}{6,234,000}\\\\\text{(OSHA)}=12.833$

Therefore, the rate of injuries among the roofers are 12.833 (approx.).

To learn more about  the incidence rate, refer to:

https://brainly.com/question/9997200