Level of shutting down production

Reference no: EM1393487

A manufacturer of a chemical used in glue, attempting to control the amount of a hazardous chemical its workers are exposed to, has given instructions to halt production if the mean amount in the air exceeds 3.0 ppm. It is believed that the standard deviation is 0.5. ppm from a previous study. A random sample of 50 air specimens produced the sample mean=3.1 ppm. If the a level of shutting down production is set at 0.05, given this air sample should production be halted?

a.) No

b.) Yes

c.) Insufficient information to make a decision

Reference no: EM1393487

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