Checkbox Activity is not Performed in android

i am going to made an application in which i use tab-view. for each tab i'm using a fragment,but when i'm going to perform any activity, no activity is performed.

public class Tab_1_Activity extends Fragment {
CheckBox Sunday_evening,Monday_morning,Monday_evening,Tuesday_morning,Tuesday_evening;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

   final  View rootView = inflater.inflate(R.layout.activity_tab_1, container, false);

    Sunday_evening =(CheckBox) rootView.findViewById(R.id.check_sunday_evening);
    Monday_morning =(CheckBox) rootView.findViewById(R.id.check_monday_morning);
    Monday_evening =(CheckBox) rootView.findViewById(R.id.check_monday_evening);
    Tuesday_morning=(CheckBox) rootView.findViewById(R.id.check_tuesday_morning);
    Tuesday_evening= (CheckBox) rootView.findViewById(R.id.check_tuesday_evening);

    //Monday Morning Checked condition

    Monday_morning.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if(b)
            {
                Sunday_evening.setChecked(false);
                Monday_evening.setChecked(false);
                Tuesday_morning.setChecked(false);
                Tuesday_evening.setChecked(false);
            }
            else
            {
                Sunday_evening.setChecked(true);
                Monday_evening.setChecked(true);
                Tuesday_morning.setChecked(true);
                Tuesday_evening.setChecked(true);
            }
        }
    });
    return inflater.inflate(R.layout.activity_tab_1, container, false);
}

}