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Exam (elaborations)

Ecological methods and presenting data questions with verified answers.

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  • Course
  • Ecological Methods I
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  • Ecological Methods I

Ecological methods and presenting data questions with verified answers. Data assumptions (4) - Correct Answer data are normally distributed samples were random variances were homogeneous samples are independent Population vs sample (2) - Correct Answer population includes all elements from a...

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  • September 15, 2024
  • 1
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Ecological Methods I
  • Ecological Methods I
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faithpwanjiku
Ecological methods and presenting data
questions with verified answers.
Data assumptions (4) - Correct Answer data are normally distributed

samples were random

variances were homogeneous

samples are independent



Population vs sample (2) - Correct Answer population includes all elements from a set of data

a sample consists of one or more observations drawn from the population



Randomly sampled - Correct Answer avoids bias and unwanted effects



Independent samples - Correct Answer sample has not been affected by, or is not related to other
samples from the population



Normal distribution - Correct Answer assume that 68% of sample falls within 1SD, 95% within 2SD, and
99% within 2.5SD



Standard error definition and 2 assumptions - Correct Answer like the standard deviation but for the
population

assume

- big enough sample

observations are normally distributed



t-test (2) - Correct Answer calculates the probability of obtaining such a difference between pairs of
sample means

can be one tailed or two tailed



ANOVA - Correct Answer assumption of normal distribution

compares the means of two samples

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