Data examining the factors that impact the amount of hydrocarbon vapour released
when gasoline is pumped into a tank.
     
    
    
    
    A data frame with 125 rows and 5 variables:
- tanktemp
- initial tank temperature (degrees F) 
- gastemp
- temperature of the dispensed gasoline (degrees F) 
- tankpres
- initial vapour pressure in the tank (psi) 
- gaspres
- vapour pressure of the dispensed gasoline (psi) 
- y
- hydrocarbons emitted (g) 
 
    
    
    References
    Bedrick, E.J. (2000). Checking for lack of fit in linear models with parametric
variance functions. Technometrics 42 (3), 226–236.
Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.