Business Statistics

600 Business Statistics

FigUre 16.41

Fitted line plot for Example

16.6 (quadratic regression

trend model) produced using

Minitab

16B1. The following table provides the sales of a departmental

store in nine years. Develop a linear and quadratic regres-

sion model with the help of the data given in the table and

compare the obtained result from both the models.

Year Sales (in thousand rupees)

1998 45

1999 46

2000 48

2001 75

2002 76

2003 76

2004 95

2005 95

2006 96

16B2. Dena Bank was founded on 26th May 1938, under the name

Devkaran Nanjee Banking Company Ltd. The bank became

a public limited company in 1939 and its name was changed

to Dena Bank ...