Suppose the age distribution of the Canadian population and the age distribution
ID: 2927427 • Letter: S
Question
Suppose the age distribution of the Canadian population and the age distribution of a random sample of
470 residents in the Indian community of Red Lake are shown below.
Age (years) Perecent of Canadian Population Observed Number in Red Lake Village
Under 5 5.9% 44
5 to 14 13.7% 58
15 to 64 69.9% 324
65 and older 10.5% 44
Use a = 0.01 to test the claim that the age distribution of the general Canadian population fits the age
distribution of the residents of Red Lake Village. What is the level of significance?
A) 0.05
B)
0.90
C)
0.95
D)
0.01
E)
0.75
B)
0.90
C)
0.95
D)
0.01
E)
0.75
Explanation / Answer
Answer:
Suppose the age distribution of the Canadian population and the age distribution of a random sample of
470 residents in the Indian community of Red Lake are shown below.
Age (years) Perecent of Canadian Population Observed Number in Red Lake Village
Under 5 5.9% 44
5 to 14 13.7% 58
15 to 64 69.9% 324
65 and older 10.5% 44
Use a = 0.01 to test the claim that the age distribution of the general Canadian population fits the age
distribution of the residents of Red Lake Village. What is the level of significance?
A) 0.05
B)
0.90
C)
0.95
Answer: D)
0.01
E)
0.75
Goodness of Fit Test
observed
expected
O - E
(O - E)² / E
44
27.730
16.270
9.546
58
64.390
-6.390
0.634
324
328.530
-4.530
0.062
44
49.350
-5.350
0.580
470
470.000
0.000
10.823
10.823
chi-square
3
df
.0127
p-value
Calculated chi square = 10.823, Df=3 .
Calculated chi square =10.823 is > critical value 7.815 at 0.05 level.
Ho is rejected.
We reject the hypothesis that the age distribution of the general Canadian population fits the age
distribution of the residents of Red Lake Village.
B)
0.90
C)
0.95
Answer: D)
0.01
E)
0.75
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.