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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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jldobro jldobro
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6 years ago
A sample of 49 measurements of tensile strength for roof hangers are calculated to have a mean of 2.45 and a standard deviation of 0.25 . (Units are Newton's per square meter.)
 a. Determine the 95 confidence interval for mean tensile strength for all hangers.
  b. Interpret this confidence interval.
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umass508umass508
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