Question

Nearly 75% of all deaths in the United States are attributed to just 10 causes, with the top four of these accounting for over 50% of all non-accidental deaths as follows: heart disease (23.4%), cancer (22.5%), respiratory disease (5.6%), and stroke (5.1%).† A study of the causes of

n = 315

non-accidental deaths at a local hospital gave the following counts.

Cause	Heart Disease	Cancer	Respiratory Disease	Stroke	Other
Deaths	79	82	31	17	106

Find the test statistic. (Round your answer to two decimal places.)

Χ² = ?

Answer 1

The statistical software output for this problem is :

Chi-Square goodness-of-fit results: Observed: Oi Expected: Pi N DF Chi-Square P-value 315 4 19.197354 0.0007 Observed – Expected 73.71 82 70.875 17.64 17 16.065 106 136.71

Χ² = 19.20