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

Short Answer

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. $\begin{array} {ccc}\text { Student } & \text { Coop Jobs } & \text {Job Offer }\\ 1 & 1 & 4 \\ 2 & 2 & 6 \\ 3 & 1 & 3 \\ 4 & 0 & 1 \end{array}$
-Referring to Scenario 12-3, suppose the director of cooperative education wants to construct a95% confidence-interval estimate for the mean number of job offers received by students who have had exactly one cooperative education job.The t critical value she would use is _.