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

question 90

Short Answer

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.
$$\begin{array} { l l l } \hline \text { Student } & \text { CoopJobs } & \text { JobOffer } \\\hline 1 & 1 & 4 \\2 & 2 & 6 \\3 & 1 & 3 \\4 & 0 & 1\end{array}$$
-Referring to Table 13-3, suppose the director of cooperative education wants to obtain a 95% confidence-interval estimate for the mean number of job offers received by people who have had exactly one cooperative education job. The t critical value she would use is_______

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