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Statistics for Research in Ecology

Natasha Viener. Statistics for Research in Ecology. Sharks. Turtles. Bottle Caps. Sea Cigars. Corals. Probability - The chance that something will occur in relation to the possible alternatives Many things can affect the coral and harm them Water temperature must be warm between

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Statistics for Research in Ecology

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  1. Natasha Viener Statistics for Research in Ecology

  2. Sharks

  3. Turtles

  4. Bottle Caps

  5. SeaCigars

  6. Corals Probability - The chance that something will occur in relation to the possible alternatives Many things can affect the coral and harm them • Water temperature must be warm between 70 - 80° F or 21 - 29 ° C • Sunlight so the algae can function • Clear water to let sunlight through • Clean water because they are sensitive to pollution • Saltwater because they need a certain salt to water ratio

  7. Variance • Variance - Two values that are used in statistics to describe how far away your data are from the mean

  8. TDC ( theoretical distribution curve) of Sea Cigars Theoretical Distribution Curve – The ideal picture of a distribution based upon random sampling

  9. TTest TTest – an equation used to calculate the t-statistic designed to test whether there is a significant difference between the means of two independent samples. This equation includes the mean, the number, the variance and the probability.

  10. Chi-Square A Chi-square test is used to see if there are any significant difference between data sites or sources. Since p < .05 we reject the null hypothesis and therefore there is a significant difference in the survival rates between beach sites.

  11. Butterflies

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