·¢²¼Ê±¼ä : ÐÇÆÚËÄ ÎÄÕ¼ÆÁ¿¾¼ÃѧÎéµÂÀïÆæµÚÈý°æÖÐÎÄ°æ¿ÎºóÏ°Ìâ´ð°¸¸üÐÂÍê±Ï¿ªÊ¼ÔĶÁ81118cc8bf23482fb4daa58da0116c175e0e1e0a
µÚ1ÕÂ
½â¾öÎÊÌâµÄ°ì·¨
1.1£¨Ò»£©ÀíÏëµÄÇé¿öÏ£¬ÎÒÃÇ¿ÉÒÔËæ»ú·ÖÅäѧÉúµ½²»Í¬³ß´çµÄÀà¡£Ò²¾ÍÊÇ˵£¬Ã¿¸öѧÉú±»·ÖÅäÒ»¸ö²»Í¬µÄÀàµÄ´óС£¬¶ø²»¿¼ÂÇÈκÎѧÉúµÄÌص㣬ÄÜÁ¦ºÍ¼ÒÍ¥±³¾°¡£¶ÔÓÚÔÒò£¬ÎÒÃǽ«¿´µ½ÔÚµÚ2ÕÂÖУ¬ÎÒÃÇÏëµÄ¾Þ´ó±ä»¯£¬°à¼¶¹æÄ££¨Ö÷Ì⣬µ±È»£¬Â×Àí·½ÃæµÄ¿¼ÂǺÍ×ÊÔ´Ô¼Êø£©¡£
£¨¶þ£©³Ê¸ºÏà¹Ø¹ØϵÒâζ×Å£¬½Ï´óµÄÒ»Àà´óСÊÇÓë½ÏµÍµÄÐÔÄÜ¡£ÒòΪ°à¼¶¹æÄ£½Ï´óµÄÐÔÄÜʵ¼ÊÉÏÉ˺¦£¬ÎÒÃÇ¿ÉÄܻᷢÏֳʸºÏà¹Ø¡£È»¶ø£¬Ëæ׏۲âÊý¾Ý£¬»¹ÓÐÆäËûµÄÔÒò£¬ÎÒÃÇ¿ÉÄܻᷢÏÖ¸ºÏà¹Ø¹Øϵ¡£ÀýÈ磬À´×Խϸ»Ô£¼ÒÍ¥µÄ¶ùͯ¿ÉÄܸüÓпÉÄܲμӰ༶¹æÄ£½ÏСµÄѧУ£¬ºÍ¸»Ô£µÄº¢×ÓÒ»°ãÔÚ±ê×¼»¯¿¼ÊÔÖгɼ¨¸üºÃ¡£ÁíÒ»ÖÖ¿ÉÄÜÐÔÊÇ£¬ÔÚѧУ£¬Ð£³¤¿ÉÄÜ·ÖÅä¸üºÃµÄѧÉú£¬ÒÔС°àÊڿΡ£»òÕߣ¬ÓÐЩ¼Ò³¤¿ÉÄÜ»á¼á³ÖËûÃǵĺ¢×Ó¶¼ÔÚ½ÏСµÄÀ࣬ÕâЩ¼Ò³¤ÍùÍùÊǸü¶àµØ²ÎÓë×ÓÅ®µÄ½ÌÓý¡£
£¨Èý£©¼øÓÚDZÔڵĻìÔÓÒòËØ - ÆäÖÐһЩÊǵڣ¨ii£©ÉÏÊÐ - Ñ°ÕÒ¸ºÏà¹Ø¹Øϵ²»»áÊÇÓÐÁ¦µÄÖ¤¾Ý£¬ËõС°à¼¶¹æÄ££¬Êµ¼ÊÉÏ´øÀ´¸üºÃµÄÐÔÄÜ¡£ÔÚijÖÖ·½Ê½µÄ»ìÔÓÒòËصĿØÖÆÊDZØÒªµÄ£¬ÕâÊǶàÔª»Ø¹é·ÖÎöµÄÖ÷Ìâ¡£
1.2£¨Ò»£©ÕâÀïÊǹ¹³ÉÎÊÌâµÄÒ»ÖÖ·½·¨£ºÈç¹ûÁ½¼Ò¹«Ë¾£¬ËµAºÍB£¬ÏàͬµÄÔÚ¸÷·½Ãæ±ÈB¹«Ë¾¨¤ÓÃÆ·¹¤×÷Åàѵ֮һСʱÿÃû¹¤ÈË£¬¼á¶¨³ýÍ⣬¶àÉÙ»á¼á¶¨µÄÊä³ö´ÓB¹«Ë¾µÄ²»Í¬£¿
£¨¶þ£©¹«Ë¾ºÜ¿ÉÄÜÈ¡¾öÓÚ¹¤È˵ÄÌصãÑ¡ÔñÔÚÖ°Åàѵ¡£Ò»Ð©¹Û²ìµ½µÄÌصãÊǶàÄêµÄ½ÌÓý£¬¶àÄêµÄÀͶ¯Á¦£¬ÔÚÒ»¸öÌض¨µÄ¹¤×÷¾Ñé¡£ÆóÒµÉõÖÁ¿ÉÄÜÆçÊÓ¸ù¾ÝÄêÁ䣬ÐÔ±ð»òÖÖ×å¡£Ò²ÐíÆóҵѡÔñÌṩÅàѵ£¬¹¤ÈË»ò¶à»òÉÙÄÜÁ¦£¬ÆäÖУ¬¡°ÄÜÁ¦¡±¿ÉÄÜÊÇÄÑÒÔÁ¿»¯£¬µ«ÆäÖÐÒ»¸ö¾ÀíµÄÏà¶ÔÄÜÁ¦²»Í¬µÄÔ±¹¤ÓÐһЩÏë·¨¡£´ËÍ⣬²»Í¬ÖÖÀàµÄ¹¤ÈË¿ÉÄܱ»ÎüÒýµ½ÆóÒµ£¬Ìṩ¸ü¶àµÄ¾ÍÒµÅàѵ£¬Æ½¾ù£¬Õâ¿ÉÄܲ»ÊǺÜÃ÷ÏÔ£¬Ïò¹ÍÖ÷¡£
£¨iii£©¸Ã½ð¶îµÄ×ʽðºÍ¼¼Êõ¹¤ÈËÒ²½«Ó°ÏìÊä³ö¡£ËùÒÔ£¬Á½¼Ò¹«Ë¾¾ßÓÐÍêÈ«ÏàͬµÄ¸÷ÀàÔ±¹¤Ò»°ã¶¼»áÓв»Í¬µÄÊä³ö£¬Èç¹ûËûÃÇʹÓò»Í¬Êý¶îµÄ×ʽð»ò¼¼Êõ¡£¹ÜÀíÕßµÄËØÖÊÒ²ÓÐЧ¹û¡£
£¨iv£©ÎÞ£¬³ý·ÇѵÁ·Á¿ÊÇËæ»ú·ÖÅä¡£Ðí¶àÒòËØÉÏÊв¿·Ö£¨¶þ£©¼°£¨iii£©¿ÉÓÐÖúÓÚÑ°ÕÒÊä³öºÍÅàѵµÄÕýÏà¹Ø¹Øϵ£¬¼´Ê¹²»ÔÚÖ°ÅàѵÌá¸ß¹¤È˵ÄÉú²úÁ¦¡£
1.3ûÓÐÈκÎÒâÒ壬Ìá³öÕâ¸öÎÊÌâµÄÒò¹û¹Øϵ¡£¾¼Ãѧ¼Ò»áÈÏΪѧÉúÑ¡ÔñµÄ»ìºÏѧϰºÍ¹¤×÷£¨ºÍÆäËû»î¶¯£¬ÈçÉϿΣ¬ÐÝÏУ¬Ë¯¾õ£©µÄ»ù´¡ÉϵÄÀíÐÔÐÐΪ£¬ÈçЧÓÃ×î´ó»¯µÄÔ¼Êø£¬ÔÚÒ»¸öÐÇÆÚÖ»ÓÐ168Сʱ¡£È»ºóÎÒÃÇ¿ÉÒÔʹÓÃͳ¼Æ·½·¨À´ºâÁ¿Ö®¼äµÄ¹ØÁªÑ§Ï°ºÍ¹¤×÷£¬°üÀ¨»Ø¹é·ÖÎö£¬ÎÒÃǸ²¸ÇµÚ2Õ¿ªÊ¼¡£µ«ÎÒÃDz»»áÉù³ÆÒ»¸ö±äÁ¿¡°Ê¹¡±µÈ¡£ËûÃǶ¼Ñ¡ÔñѧÉúµÄ±äÁ¿¡£
µÚ2Õ ½â¾öÎÊÌâµÄ°ì·¨
2.1£¨I£©µÄÊÕÈ룬ÄêÁ䣬¼ÒÍ¥±³¾°£¨ÈçÐֵܽãÃõÄÈËÊý£©½ö½öÊǼ¸¸ö¿ÉÄÜÐÔ¡£Ëƺõÿ¸ö¿ÉÒÔÓëÕâЩÄêµÄ½ÌÓý¡£ £¨ÊÕÈëºÍ½ÌÓý¿ÉÄÜÊÇÕýÏà¹Ø£¬¿ÉÄÜÊǸºÏà¹Ø£¬ÄêÁäºÍÊܽÌÓý£¬ÒòΪÔÚ×î½üµÄͬ»ïÓи¾Å®£¬Æ½¾ù¶øÑÔ£¬¸ü¶àµÄ½ÌÓýºÍÐֵܽãÃúͽÌÓýµÄÈËÊý¿ÉÄܳʸºÏà¹Ø£©¡£
£¨ii£©²»»á£¨i£©²¿·ÖÖÐÁгöµÄÒòËØ£¬ÎÒÃÇÓëEDUC¡£ÒòΪÎÒÃÇÏë±£³ÖÕâЩÒòËز»±ä£¬ËüÃǵÄÎó²îÏîµÄÒ»²¿·Ö¡£µ«ÊÇ£¬Èç¹ûuÓëEDUCÄÇôE£¨U | EDUC£©£¬ËùÒÔSLR.4ʧ°Ü¡£
2.2·½³ÌÓÃеĴíÎó
£¬¼Ó¼õµÄÓұߣ¬µÃµ½y =£¨£©£¬¹ÊE£¨E£©= 0¡£ÐµÄÀ¹½Ø£¬µ«Ð±ÂÊÈÔÈ»ÊÇ
£¨
¡£
£©¡£µ÷
2.3£¨Ò»£©ÈÃÒ×= GPAI£¬XI = ACTI£¬ºÍn = 8¡£ = 25.875£¬= 3.2125£¬£¨Ê®Ò» - £©£¨ÒÕ - £©= 5.8125£¬£¨Ê®Ò» - £©2 = 56.875¡£´Ó¹«Ê½£¨2.9£©£¬ÎÒÃǵõ½ÁËƶÈΪ= 5.8125/56.875 0.1022£¬ËÄÉáÎåÈëÖÁСÊýµãºóËĸöµØ·½¡£ £¨2.17£©= - 3.2125 - 0.1022 25.875 0.5681¡£Òò´Ë£¬ÎÒÃÇ¿ÉÒÔÕâÑùд
= 0.5681 + 0.1022 ACT ÿ×é8Ö»¡£
À¹½ØûÓÐÒ»¸öÓÐÓõĽâÊÍ£¬ÒòΪʹ²»½Ó½üÁãµÄÈË¿ÚµÄÀûÒæ¡£ £¬Èç¹ûACTÊǸß5µã£¬Ôö¼Ó0.1022£¨5£©= .511¡£
£¨¶þ£©¹Û²ìÊýiºÍGPAµÄÄâºÏÖµºÍ²Ð²î - ËÄÉáÎåÈëÖÁСÊýµãºóËÄλ - Ëæ×ÅÓÚÏÂ±í£º
¨ªGPA
1 2.8 2.7143 0.08572 3.4 3.0209 0.37913 3.0 3.2253 - 0.22534 3.5 3.3275 0.17255 3.6 3.5319 0.06816 3.0 3.1231 - 0.12317 2.7 3.1231 - 0.42318 3.7 3.6341 0.0659
Äú¿ÉÒÔÑéÖ¤µÄ²Ð²î£¬±íÖб¨¸æ£¬×ܽᵽ
£¬ÕâÊǷdz£½Ó½üÁ㣬ÓÉÓÚ¹ÌÓеÄÉáÈëÎó²î¡£
£¨¢££©µ±ACT = 20 = 0.5681 + 0.1022£¨20£©2.61¡£
£¨iv£©±¾²Ð²îƽ·½ºÍ£¬´óÔ¼ÊÇ0.4347£¨ËÄÉáÎåÈëÖÁСÊýµãºóËÄ룩£¬Õý·½ÐεÄ×ܺͣ¬£¨YI - £©2£¬´óÔ¼ÊÇ1.0288¡£Òò´Ë£¬R-ƽ·½µÄ»Ø¹é
R2 = 1 - SSR / SST 1 - £¨.4347/1.0288£©.577µÄ¡£
Òò´Ë£¬Ô¼57.7£¥µÄGPAµÄ±ä»¯½âÊÍʹѧÉúÔÚÕâ¸öСÑù±¾¡£
2.4£¨I£©µÄCIGS = 0£¬Ô¤²â³öÉúÌåÖØÊÇ119.77°»Ë¾¡£µ±CIGS = 20£¬= 109.49¡£ÕâÊǹØÓÚÒ»¸ö8.6£¥µÄ½µ·ù¡£
£¨ii£©²¢·Ç±ØÈ»¡£»¹ÓÐÐí¶àÆäËûµÄÒòËØ£¬¿ÉÒÔÓ°ÏìÐÂÉú¶ùµÄÌåÖØ£¬ÓÈÆäÊÇÕûÌ彡¿µµÄĸÇ׺ͲúÇ°»¤ÀíÖÊÁ¿¡£ÕâЩ¿ÉÒÔÓëÎüÑÌÃÜÇÐÏà¹Ø£¬ÔÚ·ÖÃäÆڼ䡣´ËÍ⣬È翧·ÈÒòÏû·ÑµÄ¶«Î÷¿ÉÒÔÓ°ÏìÐÂÉú¶ùµÄÌåÖØ£¬Ò²¿ÉÄÜÓëÎüÑÌÃÜÇÐÏà¹Ø¡£
£¨Èý£©Èç¹ûÎÒÃÇÏëÔ¤²â125 bwght£¬È»ºóCIGS =£¨125 - 119.77£©/£¨ - .524£©-10.18£¬»òÔ¼-10ÏãÑÌ£¡µ±È»£¬ÕâÍêÈ«ÊÇÎÞ»ü̸֮£¬²¢±íÃ÷»á·¢Éúʲô£¬µ±ÎÒÃÇÊÔͼԤ²â¸´ÔÓ£¬³öÉúʱÌåÖØÖ»ÓÐÒ»¸öµ¥Ò»µÄ½âÊͱäÁ¿µÄ¶«Î÷¡£×î´óµÄÔ¤²â³öÉúÌåÖرØÈ»ÊÇ119.77¡£È»¶ø£¬½ü700¸öÑùÆ·ÖÐÓгöÉú³öÉúÌåÖظßÓÚ119.77¡£
£¨ËÄ£©1,176 1,388Ãû¸¾Å®Ã»ÓÐÔÚ»³ÔÐÆÚ¼äÎüÑÌ£¬»òÔ¼84.7£¥¡£ÒòΪÎÒÃÇʹÓõÄΨһµÄµÄCIGS½âÊͳöÉúÌåÖØ£¬ÎÒÃÇÖ»ÓÐÒ»¸öÔ¤²â³öÉúÌåÖØÔÚCIGS = 0¡£Ô¤²â³öÉúÌåÖرØÈ»ÊÇ´óÖÂÖмä¹Û²ì³öÉúÌåÖØÔÚCIGS = 0£¬ËùÒÔÎÒÃÇ»á¸ù¾ÝÔ¤²â¸ß³öÉúÂÊ¡£
2.5£¨i£©±¾½Ø¾àÒâζ×Å£¬£¬µ±INC = 0£¬È±µã±»Ô¤²âΪ¸º124.84ÃÀÔª¡£ £¬µ±È»£¬Õâ²»¿ÉÄÜÊÇÕæʵµÄ£¬·´Ó³ÁËÕâÒ»ÊÂʵ£¬ÔÚÊÕÈëºÜµÍµÄˮƽ£¬Õâ¸öÏû·Ñº¯Êý¿ÉÄÜÊÇÒ»¸öÔã¸âµÄÔ¤²âÏû·Ñ¡£ÁíÒ»·½Ã棬ÔÚÄê¶È»ù´¡ÉÏ£¬124.84ÃÀÔªÖÁ½ñûÓдÓÁã¡£
£¨¶þ£©Ö»Ðè²åÉÏ30,000È빫ʽ£º= -124.84 + .853£¨30,000£©= 25,465.16Ôª¡£
£¨iii£©¸ÃMPCºÍAPCµÄÊÇÔÚÏÂÃæµÄͼ±íËùʾ¡£¾¡¹Ü½Ø¾àΪ¸ºÊ±£¬ÑùÆ·ÖеÄ×îСµÄAPCÊÇÕýµÄ¡£Í¼¿ªÊ¼ÒÔÿÄê1,000Ôª£¨1970ÃÀÔª£©µÄÊÕÈëˮƽ¡£
2.6£¨i£©Í¬Òâ¡£Èç¹ûÉú»îÃÜÇзٻ¯Â¯ÒÖÖÆ·¿¼Û¹ý¿ìÉÏÕÇ£¬È»ºóÔ½Ô¶£¬Ôö¼Óס·¿¼Û¸ñ¡£
£¨ii£©ÈôÑ¡ÔñµÄ³ÇÊж¨Î»ÔÚÒ»¸öµØÇø·Ù»¯Â¯Ô¶Àë¸ü°º¹óµÄ½ÖÇø£¬È»ºóµÇ¼£¨Çø£©³ÊÕýÏà¹Ø£¬Óë·¿ÎÝÖÊÁ¿¡£Õ⽫Υ·´SLR.4£¬OLS¹À¼ÆÊÇÓÐʧƫÆÄ¡£
£¨Èý£©´óСµÄ·¿×Ó£¬Ô¡ÊÒµÄÊýÁ¿£¬ºÜ¶àµÄ´óС£¬ÄêÁ䣬¼ÒÍ¥£¬¾Óί»á£¨°üÀ¨Ñ§Ð£ÖÊÁ¿£©ÖÊÁ¿£¬¶¼Ö»ÊǼ«ÉÙÊýµÄÒòËØ¡£ÕýÈçÇ°ÃæÌáµ½µÄ£¨ii£©²¿·Ö£¬ÕâЩ¿Ï¶¨»á±»·ÖÅÉ[ÈÕÖ¾£¨DIST£©]µÄÏà¹ØÐÔ¡£
2.7£¨Ò»£©µ±ÎÒÃÇÌõ¼þµÄ¹«Ë¾ÔÚ¼ÆËãµÄÆÚÍû£¬³ÉΪһ¸ö³£Êý¡£ËùÒÔE£¨U | INC£©= E£¨E | INC£©= E£¨E | INC£©= 0£¬ÒòΪE£¨E | INC£©= E£¨E£©= 0¡£
£¨2£©Í¬Ñù£¬µ±ÎÒÃÇÌõ¼þµÄ¹«Ë¾ÔÚ¼ÆËã·½²î£¬³ÉΪһ¸ö³£Êý¡£ËùÒÔVAR£¨U | INC£©= VAR£¨E | INC£©=£¨£©2VAR£¨E | INC£©INC£¬ÒòΪVAR£¨E | INC£©=¡£
£¨Èý£©¼ÒÍ¥ÊÕÈëµÍûÓжÔÏû·ÑÓкܴóµÄ×ÔÓɲÃÁ¿È¨£¬Í¨³£Çé¿öÏ£¬Ò»¸öµÍÊÕÈëµÄ¼ÒÍ¥±ØÐ뻨·ÑÔÚʳƷ£¬·þ×°£¬×¡·¿£¬ºÍÆäËûÉú»î±ØÐèÆ·¡£ÊÕÈë¸ßµÄÈËÓиü¶àµÄ×ÔÓɲÃÁ¿È¨£¬ÓÐЩÈË¿ÉÄÜ»áÑ¡Ôñ¸ü¶àµÄÏû·Ñ£¬¶øÆäËû¸ü½ÚÊ¡¡£´Ë×ÃÇéȨ£¬½¨ÒéÔÚÊÕÈë½Ï¸ßµÄ¼ÒÍ¥´¢ÐîÖ®¼äµÄ¸ü¹ã·ºµÄ±äÒì¡£
µÚ2.8£¨i£©´Ó·½³Ì£¨2.66£©£¬
= /¡£
¶ÂÔÚÒå¸øÈË
= /¡£
±ê×¼´úÊýºó£¬·Ö×Ó¿ÉÒÔдΪ ¡£
°ÑÕâ¸ö·ÖĸÏÔʾ£¬ÎÒÃÇ¿ÉÒÔд ¡£
Î÷°²Ìõ¼þ£¬ÎÒÃÇÓÐ
E£¨£©
ÒòΪE£¨UI£©¶ÔÓÚËùÓеÄi = 0¡£Òò´Ë£¬Æ«ÖÃÔÚÕâ¸ö·½³ÌÖеĵÚÒ»ÏîÓÉÏÂʽ¸ø³ö¡£ÕâÖÖÆ«¼ûÏÔÈ»ÊÇÁ㣬µ±¡£Ò²ÎªÁãʱ£¬= 0£¬= 0ÕâÊÇÏàͬµÄ¡£ÔÚºóÕßµÄÇé¿öÏ£¬Í¨¹ýÔµãµÄ»Ø¹éÊǻعé½Ø¾àÏàͬ¡£
£¨ii£©´Ó×îºóÒ»¸ö±í´ïʽ²¿·Ö£¨i£©ÎÒÃÇÓУ¬ÓÐÌõ¼þÙ⣬
£¨VAR£©= VAR = == /¡£