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(See Steps) The following data are the breaking loads for various types of fabrics that are unabraded and abraded. Fabric type 1 2 3 4 5 6 7 8 Abraded 36.4

Question: The following data are the breaking loads for various types of fabrics that are unabraded and abraded.

Fabric type 1 2 3 4 5 6 7 8
Abraded 36.4 55.0 51.5 38.7 43.2 48.8 25.6 49.8
Unabraded 28.5 20.0 46.0 34.5 36.5 52.5 26.5 46.5
  1. Form a 95% confidence interval for the population mean difference in breaking load, assume a normal population.
  2. According to the interval, is there a difference? Explain your answer.

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