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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## job-related accidents ##### This topic has 2 expert replies and 1 member reply ## job-related accidents Companies O and P each have the same number of employees who work the same number of hours per week. According to record maintained by each company, the employees of company O had fewer job related accidents last year than did the employees of company P. Therefore, employees of company O are less likely to have job-related accidents than are employees of company P. Which of the following, if true, would most weaken the conclusion ? A) The employees of company P lost more time at work due to job-related accidents than did the employees of company O. B) Company P considered more types of accidents to be job-related than did company O. C) The employees of company P were sick more often than were the employees of company O. D) Several employees of company O each had more than one job-related accident. E) The majority of Job-related accidents at company O involved a single machine. Please explain how B weaken the conclusion? Thanks ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2667 messages Followed by: 122 members Upvotes: 1153 GMAT Score: 770 rsarashi wrote: Companies O and P each have the same number of employees who work the same number of hours per week. According to record maintained by each company, the employees of company O had fewer job related accidents last year than did the employees of company P. Therefore, employees of company O are less likely to have job-related accidents than are employees of company P. Which of the following, if true, would most weaken the conclusion ? A) The employees of company P lost more time at work due to job-related accidents than did the employees of company O. B) Company P considered more types of accidents to be job-related than did company O. C) The employees of company P were sick more often than were the employees of company O. D) Several employees of company O each had more than one job-related accident. E) The majority of Job-related accidents at company O involved a single machine. Please explain how B weaken the conclusion? Thanks Imagine that we have two types of accidents: 1) Dropping a stapler on your foot and 2) Slipping on the tile in the bathroom Let's say the stats for the two companies look like this Company O: 20 employees drop a stapler on their foot; 30 employees slip in the bathroom Company P: 20 employees drop a stapler on their foot; 15 employees slip in the bathroom So 50 total employees get hurt at Company O and 35 total get hurt at Company P. But now imagine that only Company P treats slipping in the bathroom as a job-related injury. Now Company O will report 20 job-related injuries and Company P will report all 35 injuries as job-related. Clearly, it's not true that an employee is more likely to be injured at P! It's simply that P treats more types of injuries as work-related than O does. The answer is B _________________ Veritas Prep | GMAT Instructor Veritas Prep Reviews Save$100 off any live Veritas Prep GMAT Course

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Quote:
Imagine that we have two types of accidents:

1) Dropping a stapler on your foot and
2) Slipping on the tile in the bathroom

Let's say the stats for the two companies look like this

Company O: 20 employees drop a stapler on their foot; 30 employees slip in the bathroom
Company P: 20 employees drop a stapler on their foot; 15 employees slip in the bathroom

So 50 total employees get hurt at Company O and 35 total get hurt at Company P.

But now imagine that only Company P treats slipping in the bathroom as a job-related injury. Now Company O will report 20 job-related injuries and Company P will report all 35 injuries as job-related. Clearly, it's not true that an employee is more likely to be injured at P! It's simply that P treats more types of injuries as work-related than O does.

Hi DavidG ,

But still I have a doubt.

Question doesn't say that one company is assuming only one type of job related accident. So how can we assume below?

It can also happen that company O actually has fewer job related accidents.

Thanks.

### GMAT/MBA Expert

Legendary Member
Joined
14 Jan 2015
Posted:
2667 messages
Followed by:
122 members
1153
GMAT Score:
770
rsarashi wrote:
Quote:
Imagine that we have two types of accidents:

1) Dropping a stapler on your foot and
2) Slipping on the tile in the bathroom

Let's say the stats for the two companies look like this

Company O: 20 employees drop a stapler on their foot; 30 employees slip in the bathroom
Company P: 20 employees drop a stapler on their foot; 15 employees slip in the bathroom

So 50 total employees get hurt at Company O and 35 total get hurt at Company P.

But now imagine that only Company P treats slipping in the bathroom as a job-related injury. Now Company O will report 20 job-related injuries and Company P will report all 35 injuries as job-related. Clearly, it's not true that an employee is more likely to be injured at P! It's simply that P treats more types of injuries as work-related than O does.

Hi DavidG ,

But still I have a doubt.

Question doesn't say that one company is assuming only one type of job related accident. So how can we assume below?

It can also happen that company O actually has fewer job related accidents.

Thanks.
You're right that the answer choice doesn't specify that Company reports one type of injury as a job-related accident, but it does say that P specifies more types of injury as job-related accidents than O does. So I used at example in which P had 2 types of job-related injuries and O just had 1, but, of course, it could have been 3:1 or 3:2, etc. so long as P had more. The point was to illustrate how classifying fewer types of injuries as being job-related could distort the impression of total number of injuries. And while O doesn't have to have more injuries in such a scenario, if the two companies have different standards for what constitutes a work-related injury, the conclusion based on the number of reported injuries is no longer warranted - we know for sure that certain types of injuries that P would report, O would not. At the very least, we're left with doubt.

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