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
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 PopulationObserved Number
in the VillageUnder 57.2%485 to 1413.6%7015 to 6467.1%29065 and older12.1%47
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?
State the null and alternate hypotheses.
H0: The distributions are the same.
H1: The distributions are different.
H0: The distributions are different.
H1: The distributions are different.
H0: The distributions are different.
H1: The distributions are the same.
H0: The distributions are the same.
H1: The distributions are the same.
(b) Find the value of the chi-square statistic for the sample. (Round your answer to three decimal places.)
Are all the expected frequencies greater than 5?
Yes
No
What sampling distribution will you use?
Student'st
normal
uniform
binomial
chi-square
What are the degrees of freedom?
(c) Estimate theP-value of the sample test statistic.
P-value > 0.100
0.050 <P-value < 0.100
0.025 <P-value < 0.050
0.010 <P-value < 0.025
0.005 <P-value < 0.010
P-value < 0.005
(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis that the population fits the specified distribution of categories?
Since theP-value >, we fail to reject the null hypothesis.
Since theP-value >, we reject the null hypothesis.
Since theP-value, we reject the null hypothesis.
Since theP-value, we fail to reject the null hypothesis.
(e) Interpret your conclusion in the context of the application.
At the 5% level of significance, the evidence is insufficient to conclude that the village population does not fit the general Canadian population.
At the 5% level of significance, the evidence is sufficient to conclude that the village population does not fit the general Canadian population.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started