IB skill practice

Interpret inverse normal technology output

Use inverse normal calculator output to identify a boundary value.

Paper 1, Paper 2 5 marks Difficulty 4

Interpret inverse normal technology output - technology-output use

Inverse normal technology output gives \(z=-0.52\) for a lower-tail probability in a sports performance audit model with mean \(118\) and standard deviation \(16\). Find the boundary value. Confirm the interpretation before entering the result. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.