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A poll was taken of 421 students to find out if mathematics is their favorite subject....

A poll was taken of 421 students to find out if mathematics is their favorite subject. 80 students said that math was their favorite subject.

a. State the type I and type II errors.
b. Use a 0.05 significant level to test the claim that less than 20% of Moorpark students claim math is their favorite subject.

Math   Statistics-And-Probability   
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