SCENARIO 15-7-A
You Are the CEO of a Dairy Company $\left( X _ { 1 } \right)$

question 90

Short Answer

SCENARIO 15-7-A
You are the CEO of a dairy company. You are planning to expand milk production by purchasing
additional cows, lands and hiring more workers. From the existing 50 farms owned by the company,
you have collected data on total milk production (in liters), the number of milking cows, land size (in
acres) and the number of laborers. The data are shown below and also available in the Excel file
Scenario15-7-DataA.XLSX. You believe that the number of milking cows $\left( X _ { 1 } \right)$ , land size $\left( X _ { 2 } \right)$ and the number of laborers $\left( X _ { 3 } \right)$ are the best predictors for total milk production on any given farm.
-Referring to Scenario 15-7-A, what is your decision on testing whether the quadratic term for
the number of laborers is statistically significant at the 10% level of significance after you have
performed a multiple regression that includes the quadratic terms for the number of milking cows,
land size and the number of laborers?

---

Definitions:

Systolic Blood Pressure

The pressure in the arteries when the heart beats and fills them with blood, typically the higher of the two numbers recorded when measuring blood pressure.

Resting Heart Rate

The number of heartbeats per minute while at rest, indicating the heart's efficiency.

Orthostatic Hypotension

A form of low blood pressure that occurs upon standing up from a sitting or lying position, often causing dizziness or fainting.

Activity Intolerance

A state where an individual has insufficient physiological or psychological energy to endure or complete required or desired daily activities.