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Data handling and analysis

Data handling and analysis

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Question 45

A quality control engineer at a technology company is comparing the battery performance of two newly developed smartphone designs, Model α \alpha\,α and Model β\betaβ. Both models were subjected to a standardized, continuous high-performance simulation until the battery was completely depleted. The battery life, in minutes, was recorded for a large representative sample of each model.

Table 1: Descriptive statistics for the battery lives (in minutes) of Model α \alpha\,α and Model β\betaβ

Model α\alphaαModel β\betaβ
Mean420.5395.2
Median420.0370.0
Mode420.0340.0
Standard deviation12.445.8

Using the data in Table 1, explain how the distribution of battery lives for Model α \alpha\,α differs from the distribution of battery lives for Model β\betaβ.

[4]
Markscheme

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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