A fundamental principle in total quality management is the positive relationship between employee satisfaction and customer satisfaction. A business consultant surveys 15 businesses to measure employee and customer satisfaction. The data are shown in the table below:

Customer satisfaction index	Employee satisfaction index
94	76
54	48
41	56
23	12
34	56
62	78
22	23
31	45
9	40
88	98
47	55
20	34
42	23
90	88
77	78

Using EXCEL, estimate the relationship between the customer and employee satisfaction indexes.

(a) Report the regression results and write the estimated regression equation.