CAIE A-Level Further Math A2 4.4.2 The Basis of the Sign Test Questions

Practise explaining assumptions and choosing between sign, signed-rank and rank-sum tests with Further Mathematics AS questions and mark schemes.

Exam points

Explain the assumptions and basis of sign, signed-rank and rank-sum tests.

[Maximum number: 1]

A large number of students took two test papers in mathematics. The teacher believes that the marks obtained in Paper 1 will be higher than the marks obtained in Paper 2. She chooses a random sample of 9 students and compares their marks. The marks are shown in the table.

Table for Question CAIE A-Level Further Math A2 4.4.2 The Basis of the Sign Test Questions question 1 — CAIE A-Level Further Math A2

State an assumption that you have made in carrying out the test in part (a).

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CAIE A-Level Further Math A2 4.4.2 The Basis of the Sign Test Questions question 1