If Y' = -1.3X+ 20, then Y' for X= 50 is _____ .
a. -70.0
b. +70.0
c. +45.0
d. -45.0
Question 2
If the result of a tind on an experiment is reported as t(28) = 2.633, p< .05, then you know
that the _____.
a. critical value of t was 2.633
b. alpha level was less than .05
c. observed value of t was 2.633
d. total number of subjects was 28