One of the highest levels of satisfaction is to recommend a brand, or in this case a sandwich store. Subsay wants to determine what service offerings it should focus on to improve the likelihood of the shop being recommended. To do this, they have run a multiple regression. With 'I would recommend Subsay to my friends' as the dependent variable (what the regression will predict). All the service offering items being the independent variables. 

Having run the regression, you should have an R-square of 0.238. You will need to get the regression right to answer the following questions.

What is the standard error of the estimate? (Round to 2 decimal places).