SCENARIO 12-3
the Director of Cooperative Education at a State $\begin{array} { l l l } \text {Student }& \text { Coop Jobs }& \text { Job Offer}\\1 & 1 & 4 \\ 2 & 2 & 6 \\ 3 & 1 & 3 \\ 4 & 0 & 1 \end{array}$

Essay

SCENARIO 12-3
The director of cooperative education at a state college wants to examine the effect of cooperative education job experience on marketability in the work place.She takes a random sample of 4 students.For these 4, she finds out how many times each had a cooperative education job and how many job offers they received upon graduation.These data are presented in the table below. $\begin{array} { l l l } \text {Student }& \text { Coop Jobs }& \text { Job Offer}\\1 & 1 & 4 \\ 2 & 2 & 6 \\ 3 & 1 & 3 \\ 4 & 0 & 1 \end{array}$
-Referring to Scenario 12-3, the director of cooperative education wanted to test the hypothesisthat the population slope was equal to 0.The denominator of the test statistic is s $b$ 1.The value ofs in this sample is _. $b$ 1