A Researcher Has Developed the Regression Equation Y = 2

Multiple Choice

A researcher has developed the regression equation y = 2.164 + 1.3657x,where n = 6,the mean of x is 8.667,S_xx = 89.333,and S_e = 3.44.The researcher wants to test if the slope is significantly positive,and he chooses a significance level of 0.05.The critical t value is ______.

A) 2.776
B) 2.132
C) 2.015
D) 1.943
E) 1.782