Answered step by step
Verified Expert Solution
Question
1 Approved Answer
The following table shows age distribution and location of a random sample of 166 buffalo in a national park. Age Lamar District Nez Perce District
The following table shows age distribution and location of a random sample of 166 buffalo in a national park. Age Lamar District Nez Perce District Firehole District Row Total Calf 14 13 14 41 Yearling 12 8 13 33 Adult 30 27 35 92 Column Total 56 48 62 166 Use a chi-square test to determine if age distribution and location are independent at the 0.05 level of significance. (a) What is the level of significance? State the null and alternate hypotheses. CHOOSE ONE 1. H0: Age distribution and location are independent. H1: Age distribution and location are not independent . 2. H0: Age distribution and location are not independent. H1: Age distribution and location are independent. 3. H0: Age distribution and location are independent. H1: Age distribution and location are independent . 4. H0: Age distribution and location are not independent. H1: Age distribution and location are not independent. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 5? Yes No What sampling distribution will you use? uniform chi-square normal binomial What are the degrees of freedom? Student's t (c) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.) (d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis of independence? CHOOSE ONE Since the P-value > , we fail to reject the null hypothesis. Since the P-value > , we reject the null hypothesis. Since the P-value , we reject the null hypothesis. Since the P-value , we fail to reject the null hypothesis. (e) Interpret your conclusion in the context of the application. CHOOSE ONE At the 5% level of significance, there is sufficient evidence to conclude that age distribution and location are not independent. At the 5% level of significance, there is insufficient evidence to conclude that age distribution and location are not independent
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