Calculate the Capability Index, C_pk. for a process that puts pressurized grease in an aerosol can. Given the upper specification limit is 60 psi, lower specification limit is 50 psi. A production sample is taken and found that the cans average 55 psi, with a standard deviation of 2 psi. (psi: pounds per square inch)

He interest rate effect is the change in real gdp caused by the federal reserve adjusting target interest rates. is the change in consumer and investment spending due to changes in interest rates resulting from changes in the aggregate price level. is the change in exports and imports, resulting from changes in the interest rate caused by changes in the aggregate price level. is the change in investment spending and government purchases caused by changes in money demand. is the change in interest rates, caused by changes to government purchases.