fitting regression model using statistical tools

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    Lestjkj M`df Lemjg

    \edeyu Mf Zus`a

    Jzwek Kjzeg M`df Xdederekcc

    Ajttjki Rcircssj`k M`fcg

    Ssjki Xtetjstjheg V``gs

    Xhd``g @a Uuektjtetjvc Xhjckhcs

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    Ajttjki Rcircssj`k M`fcg

    Ssjki Xtetjstjheg V `gs

    Lestjkj M`df Lemjg

    \edeyu Mf Zus`a

    Jzwek Kjzeg M`df Xdederekcc

    Xhd``g `a Uuektjtetjvc Xhjckhcs

    Skjvcrsjtj Stere Megeysje

    2 56

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    5

    AJVVJKI RCIRCXXJ@K M@FCG SXJKI XVEVJXVJHEG V@@GX

    5.?

    Ydet js rcircssj`k ekegysjs

    2.?

    Gjkcer Rcircssj`k ekegysjs8.?

    Ajttjki rcircssj`k m`fcg usjki Mjhr`s`at Cxhcg

    6.?

    Ajttjki rcircssj`k m`fcg usjki X_XX

    3.?

    Ajttjki rcircssj`k m`fcg usjki XEX

    1.?

    Rcircssj`k rcsugts

    9.?

    D`w t` dekfgc mjssjki veguc

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    2

    5.?

    Ydet js rcircssj`k ekegysjs0

    E stetjstjheg pr`hcss a`r cstjmetjki tdc rcgetj`ksdjps em`ki verjebgcs.

    Jt jkhgufcs meky tchdkjqucs a`r m`fcgjki ekf ekegyzjki scvcreg verjebgcs,

    wdck tdc a`hus js `k tdc rcgetj`ksdjp bctwcck e fcpckfckt verjebgcekf`kc `r m`rc jkfcpckfckt verjebgcs.

    E rcircssj`k m`fcg js e metdcmetjheg cquetj`k tdet fcshrjbcs tdc

    rcgetj`ksdjp bctwcck tw` `r m`rc verjebgcs.

    E sjmpgc rcircssj`k m`fcg jkhgufcs `kgy tw` verjebgcs< `kc jkfcpckfckt

    ekf `kc fcpckfckt. Vdc fcpckfckt verjebgc js tdc `kc bcjki cxpgejkcf,

    ekf tdc jkfcpckfckt verjebgc js tdc `kc uscf t` cxpgejk tdc verjetj`k jk

    tdc fcpckfckt verjebgc.

    Ydjgc tdc rcsugt `a mugtjpgc rcircssj`k js ek cquetj`k tdet rcprcsckts tdc

    bcst prcfjhtj`k `a e fcpckfckt verjebgc ar`m scvcreg jkfcpckfcktverjebgcs.

    Rcircssj`k ekegysjs js uscf wdck jkfcpckfckt verjebgcs erc h`rrcgetcf

    wjtd `kc ek`tdcr ekf wjtd tdc fcpckfckt verjebgc.

    Jkfcpckfckt verjebgcs hek bc cjtdcr h`ktjku`us `r hetci`rjheg. D`wcvcr,

    jk tdc gettcr hesc tdcsc verjebgcs must bc h`fcf es fummy verjebgcs.

    Jk h`ktrest, tdc fcpckfckt verjebgc must bc mcesurcf `k e h`ktjku`us

    shegc. Ja tdc fcpckfckt verjebgc js k`t h`ktjku`us, tdc fjshrjmjkekt

    aukhtj`k ekegysjs js eppr`prjetc.

    Vdc purp`sc `a tdc rcircssj`k m`fcg js t` ckebgc tdc rcscerhdcr t` scc tdctrckf ekf menc prcfjhtj`ks `k tdc besjs `a tdc fete.

    2.?

    Gjkcer rcircssj`k ekegysjs

    Ekegysjs `a tdc strckitd `a tdc gjkcer rcgetj`ksdjp bctwcck jkfcpckfckt

    verjebgcs ekf fcpckfckt verjebgc.

    MSGVJ_GC RCIRCXXJ@K< y= b? + b5T5+ b2T2

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    8

    8.?

    Ajttjki rcircssj`k m`fcg usjki Mjhr`s`at Cxhcg

    5. H .

    2. H A @ C @

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    6

    8. J C @, E.

    J E , E I.

    6. J E , E @N.

    J E E , B .

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    3

    3. H F F E @N

    1. .

    (A)

    (J A )

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    1

    9.