To discuss building of a new hospital for a city the followi

To discuss building of a new hospital for a city, the following shows the number of individuals in a sample of 300 who indicated they support of the new hospital construction. Political Party Support Democrats 100 Republicans 120 Independents 80 We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed. The number of degrees of freedom associated with this problem is

Solution

As there are k = 3 groups, and this is a chi^2 goodness of fit test, then

df = k-1 = 3-1 = 2 [ANSWER]