A Random Sample of Nine Cast Aluminum Pots Is Taken

question 82

Essay

A random sample of nine cast aluminum pots is taken from a production line once every hour.The interior diameter of the pots is measured and the sample mean is calculated.The target for the diameter is 12 inches and the standard deviation for the pot diameter is 0.05 inches.Assume the pot diameter is normally distributed.a.Construct the centerline and the upper and lower control limits for the chart.b.The means of the samples for a given eight-hour day are 12.01 12.06 11.97 12.08 11.92 11.95 11.97 12.04.Plot these values on the chart.c.Does it appear that the process is under control? Explain.

---

Definitions:

Foreign Goods

Products or services that are produced in other countries and then imported into one's own country for consumption or use.

Central Bank

An institution that manages a state's currency, money supply, and interest rates, overseeing the commercial banking system of its country.

Prints Money

Refers to the action of a central bank creating additional currency as part of its monetary policy.

Currency Loses Value

A situation where a currency diminishes in purchasing power compared to other currencies, often due to inflation or economic policies.