if anything, might explain these differences. Clearly, if some

plants were more productive than others, there might be some

meaningful insights that could be standardized across plants to

boost overall productivity.

Ross asked Lisa Chandler, an industrial engineer at the com$-$pany$$s headquarters, to conduct a study of the plant$$s productivity.

Lisa randomly sampled $159$ weeks of output from various plants

together with the number of plant employees working that week,

the plants$$ average age in years, the product mix produced that

week $($either product A or B$),$ and whether the output was from the

day or night shift. The sampled data are in the file Hawlins Manu$-$facturing. The Hawlins management team is expecting a written

report and a presentation by Lisa when it meets again next

Tuesday.

Required Tasks:

$1.$ Identify the primary issue of the case.

$2.$ Identify a statistical model you might use to help analyze the

case