Resistor Production

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This engineering resource, produced by Mathematics in Education and Industry (MEI) for the Royal Academy of Engineering, asks the question: how can production outcome data from a manufacturing process be analysed to optimise the process?

Students consider the outputs of resistors to see the outcomes form a normal distribution. Students have to decide whether a machine producing the resistors needs calibrating. The interactive file can be used to analyse the significance of changes to the mean and standard deviation when dealing with normally distributed data.

The mathematics covered in this activity is:
• Display data using a bar chart
• Extract numerical information from a dataset
• Calculate probability
• Estimate probability as a relative frequency

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