![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
(a)
\Plot the points and obtain the regression equation using Excel-sheet.
\![\"\"](\"http://www.mathskey.com/userfiles/207-2.gif\")
The regerssion equation is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d75f98a41c0c7e87574e19eb175c312e.png\")
.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3471a51b7d8d713195f6b8120e9dfc07.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f738ca0065d2b3cd3a94e809ecc5a5b6.png\")
.
The regerssion equation is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
(b)
\The regerssion equation is .
Substitute ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=207dd276e56d0a33b75f6e82ebbaf739.png\")
in above exponential equation.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5c9ef5b25c772085a1f72603124d245d.png\")
The value of regression equation at is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c78707a441fb143456f9a96b20f3efa2.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
(a) The regerssion equation is .
(b) The value of regerssion equation at is .