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.
$$\begin{array} { c c l }
\hline \text { Student } & \text { CoopJobs } & \text { JobOffer } \
\hline 1 & 1 & 4 \
2 & 2 & 6 \
3 & 1 & 3\
4&0&1
\end{array}$$
-Referring to Table 13-3, suppose the director of cooperative education wants to obtain both a 95% confidence interval estimate and a 95% prediction interval for X = 2. The confidence interval estimate would be the wider of the two intervals.

Question

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.
 $$\begin{array} { c c l } 
\hline \text { Student } & \text { CoopJobs } & \text { JobOffer } \
\hline 1 & 1 & 4 \
2 & 2 & 6 \
3 & 1 & 3\
4&0&1
\end{array}$$
-Referring to Table 13-3, suppose the director of cooperative education wants to obtain both a 95% confidence interval estimate and a 95% prediction interval for X = 2. The confidence interval estimate would be the wider of the two intervals.

Quizplus · Accepted Answer

A prediction interval is generally wider than a confidence interval because it accounts for both the variability of the estimated mean and the additional variability of individual observations.

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

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