Question

The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below.

Age (years)	Percent of Canadian Population	Observed Number in the Village
Under 5	7.2%	50
5 to 14	13.6%	67
15 to 64	67.1%	295
65 and older	12.1%	43

Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age distribution of the residents of Red Lake Village.

(a) What is the level of significance?

Answer 1

Level of significance = 5% = 0.05

Chi square formula

= 12.48

Degree of freedom =k-1 = 4 - 1 = 3

Chi square critical value is =7.81...................by using =CHIINV(0.05,3)

Chi square test statistic value is > chi square critical value.

Therefore, we reject H0 at