Please check the examination details below before entering your candidate information Candidate
Pearson Edexcel Level 3 GCE
Wednesday 7th June 2023 Morning (Time: 2 hours) 9ST0/01 Paper reference
Statistics
Advanced PAPER 1: Data and Probability
You must have:
Statistical formulae and tables booklet, Calculator
Candidates may use any calculator allowed by Pearson regulations. Calculators must not 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).
• Use black ink or ball-point pen.
• 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.
• Unless otherwise stated, inexact answers should be given to three significant figures.
• Unless otherwise stated, statistical tests should be carried out at the 5% significance level.
Information
• A booklet ‘Statistical formulae and tables’ is provided.
• There are 7 questions in this question paper. The total mark for this paper is 80.
• 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.
AnswerALLquestions. Write your answers in the spaces provided.
1 Yin is the manager of a busy fast-food restaurant. He wants to get customer feedback on the quality of the service at the restaurant.
Three different sampling methods are considered by Yin.
Method 1
A staff member stands at the main exit to survey customers as they leave the restaurant.
(a) For Method 1, give
(i) one advantage,
(ii) one disadvantage.
Method 2
An internet link to the survey is printed on the back of customer receipts.
(b) For Method 2, give
(i) one advantage,
(ii) one disadvantage.
(1)
(1)
(1)
(1)
Question 1 continued Method 3
Customers are asked for their email address when they pay their bill, and a survey is emailed to them afterwards.
(c) For Method 3, give (i) one advantage, (1)
(ii) one disadvantage. (1)
Yin would like the survey to be ongoing. He wants to minimise expense to himself and inconvenience to customers.
(d) Select which one of the three methods, 1, 2 or 3, you would recommend for Yin to use.
Briefly explain your selection.
Yin would like the response rate to this survey to be as high as possible.
(e) Make two suggestions for Yin to improve the response rate of his survey. (2)
(Total for Question 1 is 9 marks)
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https://www.leakedexams.com/item/66459/pearson-edexcel-level-3-gcestatistics-advanced-paper-1-data-and-probability-9st001-question-paper2023