Mathematics, 19.08.2021 20:50 Crxymia
The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and muscular endurance y. The accompanying data was read from a plot in the paper.
x 390 760 780 790 840 1,035 1,210 1,240 1,290 1,410 1,485 1,470 1,515 2,210
y 3.70 4.10 4.80 5.30 3.90 3.40 6.20 6.78 7.65 4.85 7.90 4.55 6.70 8.80
Sxx = 2,636,373.214, Syy = 38.0167, Sxy = 7639.846. A scatter plot shows a linear pattern.
Required:
Compute the value of the sample correlation coefficient, r.
Answers: 3
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