The Manufacturer of Beanie Baby Dolls Used Quarterly Price Data $P _ { t } = a + b t + c _ { 1 } D 1 _ { t } + c _ { 2 } D 2 _ { t } + c _ { 3 } D 3 _ { t }$

question 4

Multiple Choice

The manufacturer of Beanie Baby dolls used quarterly price data for 2012I - 2020IV (t = 1,...,36) and the regression equation $P _ { t } = a + b t + c _ { 1 } D 1 _ { t } + c _ { 2 } D 2 _ { t } + c _ { 3 } D 3 _ { t }$ to forecast doll prices in the year 2021. $P _ { t }$ is the quarterly price of dolls,and $D 1 _ { t } , D 2 _ { t }$ and $D 3 _ { t }$ are dummy variables for quarters I,II,and III,respectively. At the 2 percent level of statistical significance,is there a statistically significant trend in the price of dolls?

• A)Yes,because 0.0022 < 0.02.
• B)No,because 0.0022 > 0.02.
• C)Yes,because 0.800 > 0.02.
• D)Yes,because 0.240 > 0.02.
• E)Yes,because 3.33 > 0.02.

---

Definitions:

Pectineus

A muscle in the upper thigh that helps in hip flexion and adduction, aiding in movements like walking and running.

Gluteus Medius

A muscle of the buttock that is involved in the abduction and internal rotation of the thigh.

Extensor Carpi Radialis

A muscle of the forearm that extends and abducts the wrist.

Biceps Brachii

A large muscle in the upper arm responsible for forearm rotation and flexion of the elbow.