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12. A drug testing facility claims to have a test for marijuana that is 90% reliable....

12. A drug testing facility claims to have a test for marijuana that is 90% reliable. In a random sample of 500 people, 67 were falsely identified. Use a 0.05 significance level to check the claim that less than 10% of the test results are wrong.

a. State the H0 and H1 hypothesis:

b. Find the critical value.

c. What is the test statistic?

d. What is the P-Value?

e. Does this test appear to be reliable enough for Traffic Enforcement?

Math   Statistics-And-Probability   
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