(a) For this data, find the value of the Pearson's product-moment correlation coefficient, r. Eduardo looked in a sports science text book. He found that the following information about r was appropriate for athletic performance. Value of 17 Description of the correlation 0 ≤ırı<0.4 weak 0.4 ≤iri < 0.8 moderate 0.8 ≤r ≤ 1 strong (b) Comment on your answer to part (a), using the information that Eduardo found. (c) Write down the equation of the regression line of t on x, in the form t = ax + b. A 57-year-old male also ran in the 5000 m race. (d) Use the equation of the regression line to estimate the time he took to complete the 5000 m race.
(a) For this data, find the value of the Pearson's product-moment correlation coefficient, r. Eduardo looked in a sports science text book. He found that the following information about r was appropriate for athletic performance. Value of 17 Description of the correlation 0 ≤ırı<0.4 weak 0.4 ≤iri < 0.8 moderate 0.8 ≤r ≤ 1 strong (b) Comment on your answer to part (a), using the information that Eduardo found. (c) Write down the equation of the regression line of t on x, in the form t = ax + b. A 57-year-old male also ran in the 5000 m race. (d) Use the equation of the regression line to estimate the time he took to complete the 5000 m race.
ChapterP: Prerequisites
SectionP.6: The Rectangular Coordinate System And Graphs
Problem 2ECP
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