How do I uncheck checkbox upon new spinner value?

Let's say for vocSpinner value = "Combat/Service" and popSpinner value = "NSmen" and I check cb1. It will give a list. However, when I change popSpinner to "Regular/NSF" it will change to another list (which is correct) but how do I uncheck the checkbox as well without creating another data that overlay. The codes I provided doesn't seem to work and I can't work it out. All help are welcome, thanks in advance!

imgur.com/a/1wt4N [Screenshot of app]

private String[] vocSpinner;
private String[] popSpinner;

private List<Standard> standardList = new ArrayList<>();
private RecyclerView recyclerView;
private StandardsAdapter sAdapter;
private CheckBox cb1;
private CheckBox cb2;

cb1 = (CheckBox) getActivity().findViewById(R.id.pushUp);
cb2 = (CheckBox) getActivity().findViewById(R.id.sitUp);

this.vocSpinner = new String[]{
            "CDO/Diver/Gds/Fitness Spec", "Combat/Service"
    };

this.popSpinner = new String[]{
            "NSmen", "Regular/NSF", "Pre-enlistee"
    };

final Spinner v = (Spinner) getActivity().findViewById(R.id.spinner_Voc);
final Spinner p = (Spinner) getActivity().findViewById(R.id.spinner_PopGp);

ArrayAdapter<String> adapterV = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_spinner_item, vocSpinner);
    v.setAdapter(adapterV);

ArrayAdapter<String> adapterP = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_spinner_item, popSpinner);
    p.setAdapter(adapterP);

v.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
            standardList.clear();
            cb1.setEnabled(true);
            cb2.setEnabled(true);
            switch (position) {
                case 0:
                    if (p.getSelectedItem().equals("NSmen")) {
                        cb1.setChecked(false);
                        cb2.setChecked(false);
                        addStandardToList("Gold - $500", ">89pts");
                        addStandardToList("Silver - $300", ">74pts");
                        addStandardToList("Incentive - $200", ">60pts");
                        addStandardToList("Pass", ">50pts");
                        sAdapter.notifyDataSetChanged();