Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Friday 19 January 2024
Morning (Time: 1 hour 30 minutes) Paper
reference WST03/01
Mathematics
International Advanced Subsidiary/Advanced Level
Statistics S3
You must have: Total Marks
Mathematical Formulae and Statistical Tables (Yellow), calculator
Candidates may use any calculator permitted by Pearson regulations.
Calculators must not have the facility for symbolic algebraic manipulation,
differentiation and integration, or have retrievable mathematical formulae
stored in them.
Instructions
•• Use black ink or ball‑point pen.
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
Fill in the boxes at the top of this page with your name,
•• centre number and candidate number.
Answer all questions and ensure that your answers to parts of questions are clearly labelled.
Answer the questions in the spaces provided
• – there may be more space than you need.
You should show sufficient working to make your methods clear. Answers without working may
• not gain full credit.
Values from the statistical tables should be quoted in full. If a calculator is used instead of the
•Information
tables, the value should be given to an equivalent degree of accuracy.
Inexact answers should be given to three significant figures unless otherwise stated.
•• A booklet ‘Mathematical Formulae and Statistical Tables’ is provided.
• There are 7 questions in this question paper. The total mark for this paper is 75.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
Advice
•• Read each question carefully before you start to answer it.
•• Try to answer every question.
Check your answers if you have time at the end.
If you change your mind about an answer, cross it out and put your new answer and any
working underneath. Turn over
,1. Chen is treating vines to prevent fungus appearing. One month after the treatment,
Chen monitors the vines to see if fungus is present.
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The contingency table shows information about the type of treatment for a sample of
150 vines and whether or not fungus is present.
Type of treatment
Copper
None Sulphur
sulphate
No fungus present 20 55 48
Fungus present 10 8 9
Test, at the 5% level of significance, whether or not there is any association between the
type of treatment and the presence of fungus.
Show your working clearly, stating your hypotheses, expected frequencies, test statistic
and critical value.
(8)
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, Question 1 continued
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, Question 1 continued
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