# Researchers have studied the ecology of ponds in rural Bangladesh. Of particular interest in such studies are the zooplankton, phytoplankton,

## Question:

The data here show zooplankton, phytoplankton, and copepod counts for 100 water samples from ponds in rural Bangladesh.

a. Find the estimated least-squares equation for the regression of copepod count on zooplankton count.

b. Test the null hypothesis that the true slope is zero, at the Î± = .05 significance level. Interpret your result.

c. Find a 95% confidence interval for the true slope in part (a). Interpret your result.

d. Find the estimated least-squares equation for the regression of copepod count on phytoplankton count.

e. Test the null hypothesis that the true slope in part (d) is zero, at the Î± = .05 significance level. Interpret your result.

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## Step by Step Answer:

**Related Book For**

## Applied Regression Analysis and Other Multivariable Methods

**ISBN:** 978-1285051086

5th edition

**Authors:** David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg

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