Suppose that values ​​in the sample are 2, 3, 3, 4, 5, 6, 8, 8,
8, 10. Calculate the observed value of t-test for the hypothesis
E(X) = 6
Select one:
a. -0.500
b. -.0350
c. 0.950
d. -1.040
e. -0.7