For Problems 5-14, please provide the following information.
(a) What is the level of significance? State the null and alternate hypotheses.
(b) Find the value of the chi-square statistic for the sample. Are all the expected frequencies greater than 5? What sampling distribution will you use? What are the degrees of freedom?
(c) Find or estimate the P-value of the sample test statistic.
(d) Based on your answers in parts (a)-(c), will you reject or fail to reject the null hypothesis that the population fits the specified distribution of categories?
(e) Interpret your conclusion in the context of the application.
Ecology: Deer The types of browse favored by deer are shown in the following table (The Mule Deer of Mesa Verde national Park, edited by Mierau and Schmidt). Using binoculars, volunteers observed the feeding habits of a random sample of 320 deer.
Type of Browse | Plant Composition in Study Area | Observed Number of Deer Feeding on This Plant |
Sage brush | 32% | 102 |
Rabbit brush | 38.7% | 125 |
Salt brush | 12% | 43 |
Service berry | 9.3% | 27 |
Other | 8% | 23 |
Use a 5% level of significance to test the claim that the natural distribution of browse fits the deer feeding pattern.
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Chapter 11 Solutions
UNDERSTANDING BASIC STAT LL BUND >A< F
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