questions are attached please see

1.
From the output of descriptive statistics, we can see that the variable living and Bart_adam contains the missing values.
So we will remove the rows containing the missing values to perform the further regression analysis.
Descriptive statistics given by the flowing SPSS output.
    Descriptive Statistics
    
    N
    Minimum
    Maximum
    Mean
    Std. Deviation
    ID
    123
    1
    160
    87.59
    46.570
    gender
    123
    1
    2
    1.63
    .486
    age
    123
    65
    98
    83.24
    7.357
    marital
    123
    1
    4
    2.50
    .935
    living
    120
    1
    3
    1.85
    .876
    LOS
    123
    10
    173
    49.44
    31.431
    MMSE
    123
    0
    30
    18.15
    6.682
    RUG_adm
    123
    4
    18
    10.16
    3.707
    Bart_adm
    121
    0
    93
    47.84
    24.678
    Valid N (listwise)
    118
    
    
    
    
2.
From the given scatter plot we can see that there is no relationship between LOS and MMSE.
From the above scatter plot we can that there is no relaytionship between RUG_adm and LOS.


From the above scatter plot we can that there is no relaytionship between age and LOS.
From the above scatter plot we can that there is no relationship between Bart_adm and LOS.
3.
Linear regression of LOS verses Age.
Dependent varible: LOS
Independent Variable: Age
From the output of SPSS, the...