Table A-5 lists critical values of r for selected values of n and a. Table A-5 More

Question:

Table A-5 lists critical values of r for selected values of n and a.

Table A-5

More generally, critical r values can be found by using the formula where the t value is found from the table of critical t values (Table A-3) assuming a two tailed case with n –2 degrees of freedom. Use the formula for r given here and in Table A-3 (with n – 2 degrees of freedom) to find the critical r values corresponding to H₁: ρ ≠ 0, α = 0.02, and n = 27.