Merlins breeding. Exercise 4.39 (page 113) gives data on the number ofbreeding pairs of

Chapter 0, Problem 5.29

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Merlins breeding. Exercise 4.39 (page 113) gives data on the number ofbreeding pairs of merlins in an isolated area in each of nine years and the percentof males who returned the next year. The data show that the percent returning islower after successful breeding seasons and that the relationship is roughly linear.Figure 5.11 shows software regression output for these data.(a) What is the equation of the least-squares regression line for predicting thepercent of males that return from the number of breeding pairs? Use the equationto predict the percent of returning males after a season with 30 breeding pairs.(b) What percent of the year-to-year variation in percent of returning males isexplained by the straight-line relationship with number of breeding pairs theprevious year?

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