# 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?

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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