In Problems 718, a sample of paired data gives a linear correlation coefficient (r). In each case,
Question:
In Problems 718, a sample of paired data gives a linear correlation coefficient \(r\). In each case, use Table 14.10 to determine whether there is a significant linear correlation.
Table 14.10
\(n=20, r=0.214 ; 5 \%\) level
Transcribed Image Text:
n a = 0.05 0.950 0.878 4 5 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 0.576 0.553 0.532 0.514 0.497 0.482 0.468 0.456 0.444 0.396 0.361 0.335 0.312 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 0.294 0.279 = 0.01 0.999 0.959 0.917 0.875 0.834 0.798 0.765 0.735 0.708 0.684 0.661 0.641 0.623 0.606 0.590 0.575 0.561 0.505 0.463 0.430 0.402 0.378 0.361
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