Multiple Regression Equation,Coefficient of correlation,Correltion analysis questions

rock pora

Well-known member
  • May 18, 2011
    11,951
    2,791
    113
    ###~.:::.සියනෑ කෝරළේ.::.~##
    e bn menna mevata utthara dannavanam kiyahallakoo





    me pics new tabs valin open kalama mita vada resolution enava bn :D
    ane bn mevata answers dannavanam kiyahallakooo
    loku udavvak bn
    nathnam udavvak vidiyata bump ekakvath dala yanna :)

    0ZHGvmz
     

    niyomax

    Well-known member
  • Sep 24, 2014
    4,595
    7,483
    113
    machan mama dennan gedara neme inne..hawas welaa daannada hadana widi :rolleyes:

    uba mokeda course eka karanne ?:yes:
     

    jolySira

    Well-known member
  • Mar 16, 2013
    1,311
    462
    83
    Q1)

    Y = 0.79116X1+0.60484X2-.02686

    As FCS and LTI increase, the long term durability also increases.

    adjusted R^2 = 1- ((0.77435/12)/(13.38473/14)) ( සුලු කරන්න කම්මලී බං)

    Higher R^2 value means the model is a better fit

    හරියට මතක නෑ බං, පොඩ්ඩක් බලන්න ආපහු... Regression අරහං මට. Bayesian/Time Series (stochastic) ඒවානම් ඕන තරම් අහපං :D


    Q2)

    මෙන්න මේකට ගිහින් variables වල values දෙන්න වෙන වෙනම

    Correlation Coefficient Calculator

    interpret කරන්න දන්නවනේ..


    ඔක්කොම කරන්න බෑ බං. වෙලා නෑ...
     
    Last edited:

    rock pora

    Well-known member
  • May 18, 2011
    11,951
    2,791
    113
    ###~.:::.සියනෑ කෝරළේ.::.~##
    Q1)

    Y = 0.79116X1+0.60484X2-.02686

    As FCS and LTI increase, the long term durability also increases.

    adjusted R^2 = 1- ((0.77435/12)/(13.38473/14)) ( සුලු කරන්න කම්මලී බං)

    Higher R^2 value means the model is a better fit

    හරියට මතක නෑ බං, පොඩ්ඩක් බලන්න ආපහු... Regression අරහං මට. Bayesian/Time Series (stochastic) ඒවානම් ඕන තරම් අහපං :D


    Q2)

    මෙන්න මේකට ගිහින් variables වල values දෙන්න වෙන වෙනම

    Correlation Coefficient Calculator

    interpret කරන්න දන්නවනේ..


    ඔක්කොම කරන්න බෑ බං. වෙලා නෑ...
    Q1) ane vasthuveeee mehema dammata therenne nane bn :D
    Bayesian/Time Series (stochastic) kiyanne monavada bn.haha vadi sellan one na bn,eva apita karala na :rofl::P

    Q2) macho e site ekata giyama enne coefficient of corelation eke value ekane bn.ekanam formula ekata dala mata karaganna puluvan :D
    anith tika thama bn one

    mata me paper ekata 40k dagannai bn one:baffled:
    ane thanx machoo help kalata.mn try ekak dennam
     

    niyomax

    Well-known member
  • Sep 24, 2014
    4,595
    7,483
    113
    Q6
    1. y=-0.02686 + 0.79116(X1) + 0.60454(X2)
    2. Slop of X1(FSC)

    Y will be increased by 0.79116
    If X1 is increased by 1 unit.

    Slop of X2(LTI)
    Y will be increased by 0.60484 if X2 is increased by 1 unit.

    3.
    r2 =SSR /SST = 12.61020/13.38473=0.9421 =94%

    94% Of the variation in y(long term durability) is explained by the variables FSC & LTI in the multiple model.

    4.
    As p=0.0001< alpha =0.01
    The null hypothesis H0 : Beeta(mark eka daaganin)1 = Beeta 2=0 can be rejected.
    The fitted regression model is very good.
     

    niyomax

    Well-known member
  • Sep 24, 2014
    4,595
    7,483
    113
    Q4 nan danne ne machan

    anikwa ekama wage..Coefficient of correlation walin example ekak balapan net eken..e widiyatama thamai anik tika ;)
     
    • Like
    Reactions: rock pora

    rock pora

    Well-known member
  • May 18, 2011
    11,951
    2,791
    113
    ###~.:::.සියනෑ කෝරළේ.::.~##
    Q6
    1. y=-0.02686 + 0.79116(X1) + 0.60454(X2)
    2. Slop of X1(FSC)

    Y will be increased by 0.79116
    If X1 is increased by 1 unit.

    Slop of X2(LTI)
    Y will be increased by 0.60484 if X2 is increased by 1 unit.

    3.
    r2 =SSR /SST = 12.61020/13.38473=0.9421 =94%

    94% Of the variation in y(long term durability) is explained by the variables FSC & LTI in the multiple model.

    4.
    As p=0.0001< alpha =0.01
    The null hypothesis H0 : Beeta(mark eka daaganin)1 = Beeta 2=0 can be rejected.
    The fitted regression model is very good.



    Q4 nan danne ne machan

    anikwa ekama wage..Coefficient of correlation walin example ekak balapan net eken..e widiyatama thamai anik tika ;)

    elakiri machooo
    thanx ah
    mn net eken godak eva hoyagattha bn :D ela ela