Determine the least- squares regressionline

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Reference no: EM13337951

The following data show U.S. production of motorvehicles versus tons of domestic steel shipped for motor vehiclemanufacture.

x=U.S.Production y=Tons of

Year of MotorVehicles DomesticSteel

2000 12.83 16.06

2001 11.52 14.06

2002 12.33 14.00

2003 12.15 15.88

2004 12.02 13.86

a. Determine the least- squares regressionline and calculate r.

b. What proportion of the variabilityin steel shipments for motor vehicles is explained by theregression equation?

c. During a year in which U.S. productionof motor vehicles is 12.0 million,what would be the prediction forthe number of tons of domestic steel used for vehicle production?

Reference no: EM13337951

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