The amount of time it takes a customer service representative (measured in minutes) to help with a customer's inquiry can be modelled as a linear function of the hours of training the representative received. For a random sample of n =81 customer service representatives, the results of a linear regression analysis where the time it takes to help a customer (response variable) has been regressed onto the hours of training the representative received (explanatory variable) is shown in the table below:

Standard Coefficient Error Intercept 22.01 7.08 Hours -1.438 8.51