TABLE 13-3
the Director of Cooperative Education at a State

TABLE 13-3
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.
$$\begin{array} { c c c c } \hline \text { Student } & \text { CoopJobs } & \text { JobOffer } \\1 & 1 & 4 \\2 & 2 & 6 \\ 3 & 1 & 3 \\4 & 0 & 1 \\\hline\end{array}$$
-Referring to Table 13-3, suppose the director of cooperative education wants to obtain two 95% confidence interval estimates. One is for the mean number of job offers received by people who have had exactly one cooperative education job and one for people who have had two. The confidence interval for people who have had one cooperative education job would be the wider of the two intervals.