Statistics Homework Solutions
Problem
#2103

Applying Statistical Tests

I would like to compare data from a study I have been doing, but don't know which statistical tests to use.
I have surveyed 40 hedgerows:
20 from site 1
20 from site 2

I have attached some of the data to show you at what stage I'm at:

1). I need to find out the significance of difference between the 2 sites in terms of their 'woody species' composition.
Would something like a t-test work for this?

2). Do some stats on other attributes of the hedgerows.
    e.g. I want to compare the 'gapiness' of the hedgerows from both sites, therefore I surveyed them into 4 categories (None, <10%, 10-30%, 30%+)what stat test could I use to show the differences between the 2 sites?

I would be grateful if you could look at the attatched files and suggest some suitable stat tests, and give a short explaination for why they should be used.

Attached file(s):
Attachments
WODDY SPECIES RESULTS.xls  View File
Solution
What is this?
By OTA - Overall OTA Rating
Purchase Cost Now
$2.19 CAD (was ~$7.98)
Included in Download
  • Plain text response
$2.19 Instant Download
Add to Cart
Why you can trust BrainMass.com
  • Your Information is Secure
  • Best Online Academic Help Service
  • Students find real academic Success
Related Solutions
  • Practical significance vs. statistical significance - What is the difference between practical significance and statistical significance? Can you give me an example?
  • What are the major differences between practical and statistical significance? - What are the major differences between practical and statistical significance?
  • Statistic Problem - A statistically significant result occurs when the value of the test statistic falls in the rejection region. A result has practical significance when it is statistically significant and the result a ...
  • help5 - A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5. A sample of 50 observations is selected from a second source ...
  • Solve : Show Work - 1. Compute a chi-square test for goodness of fit for each of the following, using the .05 level for each. In each problem, the expected distribution is equal frequencies in each category. (a) 5 10 ...
Browse