MATLAB: An Introduction with Applications
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The types of browse favored by deer are shown in the following table. Using binoculars, volunteers observed the feeding habits of a random sample of 320 deer. Level of significance is 0.05
| Type of Browse | Plant Composition in Study Area |
Observed Number of Deer Feeding on This Plant |
| Sage brush | 32% | 99 |
| Rabbit brush | 38.7% | 134 |
| Salt brush | 12% | 38 |
| Service berry | 9.3% | 25 |
| Other | 8% | 24 |
a) 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.)
Expert Solution
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Step 1
The chi-square test is a statistical test which is used to check the independence between two variables.
The chi-square test statistic is given by,
Where O denote the observed frequency and E denote the expected frequency.
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