the necessary calculation table :-
observed | test proportion | expected | ||
private insurance | 32 | 0.60 | 0.60*50 =30 | (30-32)2/30 = 0.13333 |
medicare | 10 | 0.25 | 0.25*50=12.5 | 0.5 |
personal | 8 | 1-(0.60+0.25) = 0.15 | 0.15*50 =7.5 | 0.03333 |
sum=50 | sum = 0.66666 |
the test statistic for this test be:-
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