SCENARIO 14-20-A
You Are the CEO of a Dairy Company $\left( X _ { 1 } \right)$

question 369

Short Answer

SCENARIO 14-20-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
Scenario14-20-DataA.XLSX.
S
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 14-20-A, which of the following is the correct null hypothesis to test whether the number of milking cows has any effect on the total milk production while holding
Constant the effect of the other independent variables? a) $H _ { 0 } : \beta _ { 1 } = 0$
b) $H _ { 0 } : \beta _ { 2 } = 0$
c) $H _ { 0 } : \beta _ { 3 } = 0$
d) $H _ { 0 } : \beta _ { 1 } = \beta _ { 2 } = \beta _ { 3 } = 0$

---

Definitions:

Graduated Exposure

In behavior therapy, a method in which a person suffering from a phobia or panic attacks is gradually taken into the feared situation or exposed to a traumatic memory until the anxiety subsides.

Systematic Desensitization

A behavioral therapy technique used to help individuals overcome phobias and anxiety disorders through gradual exposure to the feared object or situation.

Flooding

In behavior therapy, a form of exposure treatment in which the client is taken directly into a feared situation until his or her panic subsides.

Counterconditioning

A behavior therapy technique where a positive response is conditioned to replace a negative or undesirable response to a stimulus.