Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Tuesday 13 June 2023
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 Statistics 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 tables, the value should be given to an equivalent degree of accuracy.
Inexact answers should be given to three significant figures unless otherwise stated.
Information
•• 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
P73489A
©2023 Pearson Education Ltd.
N:1/1/1/
*P73489A0128*
,1. (a) State two conditions under which it might be more appropriate to use Spearman’s
rank correlation coefficient rather than the product moment correlation coefficient.
(2)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
A random sample of 10 melons was taken from a market stall. The length, in
centimetres, and maximum diameter, in centimetres, of each melon were recorded.
The Spearman’s rank correlation coefficient between the results was –0.673
(b) Test, at the 5% level of significance, whether or not there is evidence of a
correlation. State clearly your hypotheses and the critical value used.
(4)
The product moment correlation coefficient between the results was –0.525
(c) Test, at the 5% level of significance, whether or not there is evidence of a
negative correlation.
State clearly your hypotheses and the critical value used.
(3)
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2
*P73489A0228*
, Question 1 continued
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*P73489A0328* Turn over
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Tuesday 13 June 2023
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 Statistics 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 tables, the value should be given to an equivalent degree of accuracy.
Inexact answers should be given to three significant figures unless otherwise stated.
Information
•• 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
P73489A
©2023 Pearson Education Ltd.
N:1/1/1/
*P73489A0128*
,1. (a) State two conditions under which it might be more appropriate to use Spearman’s
rank correlation coefficient rather than the product moment correlation coefficient.
(2)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
A random sample of 10 melons was taken from a market stall. The length, in
centimetres, and maximum diameter, in centimetres, of each melon were recorded.
The Spearman’s rank correlation coefficient between the results was –0.673
(b) Test, at the 5% level of significance, whether or not there is evidence of a
correlation. State clearly your hypotheses and the critical value used.
(4)
The product moment correlation coefficient between the results was –0.525
(c) Test, at the 5% level of significance, whether or not there is evidence of a
negative correlation.
State clearly your hypotheses and the critical value used.
(3)
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2
*P73489A0228*
, Question 1 continued
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3
*P73489A0328* Turn over
