When a manager handpicks tickets for review, the team may question the selection. Random sampling makes the process easier to defend and helps avoid choosing only convenient or unusually difficult cases.
Qsen’s random number generator works for a simple review flow: number the tickets, generate random numbers, and assign the selected cases to reviewers.
Prepare the list first
Export the tickets for a clear period: a day, week, shift, or campaign. Remove duplicates, canceled records, and system entries if they should not be reviewed. Then number every remaining row from 1 to N.
Do not change the list after generating the numbers. If you remove rows later, the selection is no longer clean.
Decide the sampling rules
Choose how many tickets to review before generating anything. For example, 30 out of 420 weekly tickets. If the same ticket cannot appear twice, use a no-repeat setup or define how repeated numbers will be handled.
For three reviewers, you can generate 30 numbers and split them by order: first 10, next 10, final 10. Another option is to randomly assign the selected tickets to reviewers after the sample is created.
Record the result
Save the date, range, number of tickets, and generated list. A report line, screenshot, or spreadsheet note is enough as long as someone can later see that the tickets were not handpicked.
If the review affects bonuses, coaching, or escalation, publish the sampling rule before the review starts.
Mistakes to avoid
- calling a handpicked list random;
- editing the source list after generation;
- forgetting to record the number range;
- allowing repeats when the sample must be unique;
- drawing strong conclusions from a tiny sample.
Random sampling does not replace deeper analysis, but it gives quality review a fair starting point.
Checklist
- duplicates are removed;
- every row has a number;
- the range is known;
- sample size is set in advance;
- repeats are allowed or blocked by rule;
- the result is saved;
- assignment between reviewers is clear.
FAQ
How many tickets should be selected?
Use a number your team can actually review. For recurring quality work, choose a stable share or fixed count.
Can some tickets be excluded?
Yes, if the exclusion rule is written before selection. Removing records afterward looks like manual interference.
Should the result be saved?
For routine checks, a spreadsheet note may be enough. For sensitive reviews, save the generation settings and selected numbers.