Keys:

Display:

Description:

*j

0.00

&OHDUV￿VWDWLVWLFDO￿UHJLVWHUV￿

￿￿￿0￿￿A 1.00

(QWHUV￿KHLJKW￿DQG￿ZHLJKW￿RI￿

 

 

SOD\HU￿￿￿

￿￿￿0￿￿A 2.00

(QWHUV￿KHLJKW￿DQG￿ZHLJKW￿RI￿

 

 

SOD\HU￿￿￿

￿￿￿0￿￿A 3.00

(QWHUV￿KHLJKW￿DQG￿ZHLJKW￿RI￿

 

 

SOD\HU￿￿￿

￿￿￿0￿￿A 4.00

(QWHUV￿KHLJKW￿DQG￿ZHLJKW￿RI￿

 

 

SOD\HU￿￿￿

*$

184.25

&DOFXODWHV￿PHDQ￿RI￿KHLJKWV￿￿[￿￿

*i

82.75

'LVSOD\V￿PHDQ￿RI￿ZHLJKWV￿￿\￿￿

*M

5.80

&DOFXODWHV￿SRSXODWLRQ￿VWDQGDUG￿

 

 

GHYLDWLRQ￿IRU￿KHLJKWV￿￿[￿￿

*i

4.71

'LVSOD\V￿SRSXODWLRQ￿VWDQGDUG￿

 

 

GHYLDWLRQ￿IRU￿ZHLJKWV￿￿\￿￿

)=

331.00

'LVSOD\V￿WKH￿WRWDO￿RI￿WKH￿\·V￿

Linear Regression and Estimation

/LQHDU￿UHJUHVVLRQ￿LV￿D￿VWDWLVWLFDO￿PHWKRG￿IRU￿HVWLPDWLRQ￿DQG￿ IRUHFDVWLQJ￿￿,W￿LV￿XVHG￿WR￿ILQG￿D￿VWUDLJKW￿OLQH￿WKDW￿EHVW￿ILWV￿D￿ VHW￿RI￿[￿\￿GDWD￿￿7KHUH￿PXVW￿EH￿DW￿OHDVW￿WZR￿GLIIHUHQW￿[￿\￿

SDLUV￿￿7KH￿VWUDLJKW￿OLQH￿SURYLGHV￿D￿UHODWLRQVKLS￿EHWZHHQ￿WKH￿ [￿￿DQG￿\￿YDULDEOHV￿￿\￿ ￿P[￿￿￿E￿￿ZKHUH￿P￿LV￿WKH￿VORSH￿DQG￿E￿LV￿ WKH￿\￿LQWHUFHSW￿

Linear Regression. &DOFXODWH￿P￿￿E￿￿DQG￿U￿￿WKH￿FRUUHODWLRQ￿FRHIILFLHQW￿￿DV￿IROORZV￿

￿￿&OHDU￿WKH￿VWDWLVWLFDO￿UHJLVWHUV￿E\￿SUHVVLQJ￿*j￿

￿￿(QWHU￿WKH￿ILUVW￿[￿YDOXH￿DQG￿SUHVV￿0￿￿7KH￿[￿YDOXH￿LV￿GLVSOD\HG￿

￿￿(QWHU￿WKH￿FRUUHVSRQGLQJ￿\￿YDOXH￿DQG￿SUHVV￿A￿￿7KH￿+3￿￿￿%,,￿ GLVSOD\V￿Q￿￿WKH￿QXPEHU￿RI￿SDLUV￿RI￿LWHPV￿DFFXPXODWHG￿

￿￿&RQWLQXH￿HQWHULQJ￿[￿\￿SDLUV￿￿7KH￿Q￿YDOXH￿LV￿LQFUHPHQWHG￿ZLWK￿HDFK￿ HQWU\￿

￿￿7R￿GLVSOD\￿E￿￿WKH￿\￿LQWHUFHSW￿￿￿SUHVV￿￿*4￿￿7KHQ￿SUHVV￿ *i￿WR￿GLVSOD\￿P￿￿WKH￿VORSH￿RI￿WKH￿OLQH￿￿

￿￿3UHVV￿*3*i￿WR￿GLVSOD\￿U￿￿WKH￿FRUUHODWLRQ￿FRHIILFLHQW￿
90 7: Statistical Calculations