An Economist Is Investigating the Impact of Todayʹs Economy on Workers

Multiple Choice

An economist is investigating the impact of todayʹs economy on workers in the manufacturing industry who have been laid off. A sample of 50 workers was randomly selected from all workers
In manufacturing that have been laid off in the past year. The following variables were measured
For each laid off worker: length of time jobless (number of weeks) and tax status (single, married,
Or married/head of household) . The data for the 50 workers were entered into the computer and
Analyzed to determine if the mean number of weeks jobless differed for the three tax status groups.
The Tukey multiple comparison printout is shown below: Tukey HSD All-Pairwise Comparisons Test of JOBLESS by STATUS


Give the population mean(s) which are in the statistically smallest group.

A) $\mu$ Married \& $\mu$ Single
B) $\mu \mathrm { Mar } / \mathrm { Head }$
C) $\mu$ Single
D) $\mu$ Married