Time Series

This time series plot is an example of:

• An increasing trend

• Seasonal variation

• A decreasing trend

• A structural change

Find the trend values using Semi Average Method:

Year ---------- Sales in Lakhs of Rs.

2001 --------- 20

2002 --------- 24

2003 ---------- 19

2004 ---------- 23

2005 ---------- 25

• 22 and 25

• 21 and 24

• 22 and 24

• 22, 19, 24

This time series plot is an example of:

• Seasonality

• An increasing trend

• Irregular variation

• Cyclical variation

This time series plot is an example of:

• Seasonality

• Cyclical variation

• A decreasing trend

• Structural Change

A sudden increase in sales of ready made uniforms of school children at the time of re-opening of schools is due to which component of time series?

• positive secular trend

• seasonal pattern

• cyclic pattern

• random pattern

The __________ component of a time series measures the fluctuations in a time series due to economic conditions of prosperity and recession with a duration of approximately 2 years or longer

• Trend 

• Seasonal

• Cyclical

• Randomness

Determine the appropriate components of time series for the situation below:
The increase in sales of fireworks during New Year.

• Trend

• Seasonal Variations

• Cyclical Variations

• Irregular fluctuations

Determine the appropriate components of time series for the situation below:

Increase in sale of sanitizers due to covid.

• Trend

• Seasonal Variations

• Cyclical Variations

• Irregular fluctuations

Determine the appropriate components of time series for the situation below:

A reduction of crop production during monsoon season.

• Trend

• Seasonal Variations

• Cyclical Variations

• Irregular fluctuations

Which one of the following statement BEST describes the time series plot for the period shown?

• It shows no trend and no change in variability

• It shows increasing linear trend with constant variability

• It shows increasing trend with decreasing variability

• It shows increasing linear trend with increasing variability