The EPA sets an airborne limit of 5.00 ppm on vinyl chloride, a colorless gas used?to make plastics and adhesives. A plastics manufacturer must halt production when?the mean amount of vinyl chloride in the air exceeds 3.00 ppm. A random sample of?22 air specimens produced a mean of 3.15 ppm with a standard deviation of?0.50?ppm. Assume that the distribution of the amount of vinyl chloride is approximately?normal
(a) Conduct a test to determine whether the production process should be halted.
Use ? = .05. H0=______ H1=______
(b) Compute the test statistic and define the rejection rule. Should H0 be rejected