A researcher has developed a regression model from fourteen pairs of data points.He wants to test if the slope is significantly different from zero.He uses a two- tailed test and $\alpha$= 0.01.The critical table t value is _______.
A)2.650
B)3.012
C)3.055
D)2.718
E)2.168

Question

Quizplus · Accepted Answer

The degrees of freedom for the t-test is n-2, which is 14-2=12. For a two-tailed test with α = 0.01 and 12 degrees of freedom, the critical t value is approximately 3.055.

A Researcher Has Developed a Regression Model from Fourteen Pairs α\alphaα

A Researcher Has Developed a Regression Model from Fourteen Pairs $\alpha$