Question: The paper Effects of Canine Parvovirus CPV on Gray Wolves

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 y^ = 62.9476 2 0.54975x, with r2 = .57.
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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