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Explain what type of study this is and why

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Reference no: EM131197519

A textile engineer is interested in measuring heat resistance of four different types of treads used in making fire-resistant clothing for firefighters. A random sample of 20 threads from each type was taken and subjected to a heat test to determine resistance (the length of time the fibers survive before starting to burn). Explain what type of study this is and why.

Reference no: EM131197519

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