Contact

The fastest way to reach us is email: hello@zscoretables.com. We read everything; corrections and teacher feedback are answered first.

What to write to us about

• A wrong value or a broken tool. Tell us the page, the z score involved, and what you expected. Accuracy reports jump the queue and are verified the same day we read them.
• A table or format you need. A different range, a larger-print edition, a worksheet version for your class — if it helps teaching, we will try to build it and add it to the downloads page for everyone.
• Using our tables in your course or book. Classroom and handout use is already permitted with the source line kept on the file (see About); write if your institution needs that in writing.
• A worked example we should add. The examples library grows from real questions students actually failed — if one beat you (or your class), send it.

What we cannot do

We cannot do your homework for you, mark assignments, or provide tutoring — but the reading guide, worked examples and practice set are built to get you unstuck, and they cover every question shape we have ever seen sent to this inbox. If your question is about your own data or a course decision, your teacher or institution is the right contact; statistics advice about a specific study belongs with the people who can see the whole study.

We reply from the same address, usually within two working days. There is no phone number and no postal address for this site — it is run entirely online.