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Research methods and techniques

Research methods and techniques

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Question 89

A quality control manager at an automated packaging plant wants to inspect cereal boxes from a continuous conveyor belt. She decides to select the 12th12\text{th}12th box that passes her station, and then every 50th50\text{th}50th box thereafter until the production run of N N\,N boxes is complete. This procedure yields a sample of exactly 80 boxes.

Identify the sampling technique used, and find the range of possible values for the total number of boxes produced, NNN.

A

Systematic sampling, with 3962≤N≤40113962 \le N \le 40113962≤N≤4011

B

Systematic sampling, with 4012≤N≤40614012 \le N \le 40614012≤N≤4061

C

Simple random sampling, with 3962≤N≤40113962 \le N \le 40113962≤N≤4011

D

Stratified sampling, with 3962≤N≤40123962 \le N \le 40123962≤N≤4012

Markscheme

Research methods and techniques Questions

  1. A Level
  2. /Psychology
  3. /Research methods and techniques

644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.

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