The authors of the paper Evaluating Existing Movement Hypotheses in Linear Systems Using Larval Stream Salamanders (Canadian
Question:
a. Construct a scatterplot of the data. How would you describe the relationship between x and y?
b. Find the equation of the least-squares line describing the relationship between y = net directionality and x = mean water temperature.
c. What value of net directionality would you predict for a stream that had mean water temperature of 15 °C?
d. The authors state that when temperatures were warmer, more larvae were captured moving upstream, but when temperatures were cooler, more larvae were captured moving downstream. Do the scatterplot and least-squares line support this statement?
e. Approximately what mean temperature would result in a prediction of the same number of salamander larvae moving upstream and downstream?
Step by Step Answer:
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore