Question

When testing a null hypothesis that the population correlation is 0, do you use a 1 or 2 tailed critical value if the sample r is -0.19.

Update - Determining if there is a statistically significant correlation between parental behaviour and self-esteem

         N= 713       r = -0.19

X variable – parental control

Y variable – student’s self esteem

T statistic for testing H_o: ρ = 0

T= r √n-2 / √1-r² = -0.19 √711 / √1-(-0.19) ² = - 4.178

To find the critical t value at 0.05 df 711, do you use the one-tailed or 2 -tailed value to test the null hypothesis.

               

Answer 1