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Proportion of underpressurized canisters for supplier

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Reference no: EM132058949

The Nassau Boat Company has received shipments of pressurized cans of fiberglass sealant from each of two main suppliers, Suffolk Industries and Bronx Fiber Glass. The Nassau Boat Company testing office takes a simple random sample of 150 of the cans from the Nassau supplier and finds that 15 of the cans are underpressurized.  For a similar sample of 150 from the Bronx Fiber Glass company inspectors found 9 to be underpressurized.

Using α= .05 test whether there is a significant difference between the proportion of underpressurized canisters for each supplier. 

With the information above. Please help me answer the following:

  • Null and alternative hypotheses
  • The decision rule
  • Test statistic
  • Conclusion.

Reference no: EM132058949

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