Question

It is claimed that in a bushel of peaches less than ten percent are defective.


It is claimed that in a bushel of peaches less than ten percent are defective. A sample of 400 peaches is examined and 50 are found to be defective. 

What is the critical value for Z if you were testing the hypothesis with α = 0.025 

  • 1.96 

  • ±1.65 

  • -1.96 

  • -1.65

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