Concept explainers
The paper “Effects of Canine Parvovirus (CPV) on Gray Wolves in Minnesota” (Journal of Wildlife Management [1995]: 565–570) summarized a regression of y = Percentage of pups in a capture on x = Percentage of CPV prevalence among adults and pups. The equation of the least-squares line, based on n = 10 observations, was
- a. One observation was (25, 70). What is the corresponding residual?
- b. What is the value of the sample
correlation coefficient ? - c. Suppose that SSTo = 2520.0 (this value was not given in the paper). What is the value of se?
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