Calculating Speed Increase With Weighted Average Help

stanlerbywater

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Mar 1, 2020
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Hi - wondering if folks can help with the below problem!

A tech company is upgrading their travel claim software for employees submitting in-country expense claims for reimbursement.

Of all the claims entered, 94% are in-country claims broken down by size as follows:

1-10 lines: 55.3%
11-25 lines: 28.9%
26-50 lines: 9.7%
101+ lines: 0.20%

The remaining 6 percent of claims represent out of country travel claims.

On the old system, an 8 line claim took one user 540 seconds and another user 223 seconds. For a 20 line claim, it took one user 1170 seconds and another user 397 seconds.

The new system claims it will take 60 seconds per line.

Using a weighted average, how much faster is the new system compared to the old?

Do I take the users times, add them together and divided by 2 to get an average and then multiple that by the 55.3% and 28.9% respectively?
 
Last edited:
Hi - wondering if folks can help with the below problem!

A tech company is upgrading their travel claim software for employees submitting in-country expense claims for reimbursement.

Of all the claims entered, 94% are in-country claims broken down by size as follows:

1-10 lines: 55.3%
11-25 lines: 28.9%
26-50 lines: 9.7%
101+ lines: 0.20%

The remaining 6 percent of claims represent out of country travel claims.

On the old system, an 8 line claim took one user 540 seconds and another user 223 seconds. For a 20 line claim, it took one user 1170 seconds and another user 397 seconds.

The new system claims it will take 60 seconds per line.

Using a weighted average, how much faster is the new system compared to the old?

Do I take the users times, add them together and divided by 2 to get an average and then multiple that by the 55.3% and 28.9% respectively?
WAY too little information. Not even close to enough data to make any sort or rational conclusion.
 
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