I in a Time Series Analysis, the Letter "A" in the Linear

question 88

Multiple Choice

i. In a time series analysis, the letter "a" in the linear trend equation, is the value of when t = 0. ii. In the linear trend equation, t is any value that corresponds with a time period, i.e., month or quarter.
iii. If the sales, production or other data over a period of time tend to approximate a straight-line trend, the equation developed by the least squares method cannot be used to forecast sales for a future period.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Norepinephrine

A hormone and neurotransmitter involved in the body's fight or flight response, regulating heart rate and blood pressure among other functions.

Epinephrine

A hormone and neurotransmitter also known as adrenaline that increases heart rate, muscle strength, blood pressure, and sugar metabolism.

Homeostasis

The physiological process by which living organisms maintain stability in their internal environment despite changes in external conditions.

Hypothalamus

A region of the brain that regulates vital bodily functions such as temperature, hunger, thirst, and the sleep-wake cycle.