A company has a monthly time series that regularly shows sales being higher in the summer months. This is an example of which component?

A time-series plot that exhibits a general increase in value from the early periods to the latest time periods:

Which of the following is true about index numbers? Index numbers are:

Stock analyst observes that over the past 50 years there have been periods of high market prices followed by periods of lower prices but over time prices have moved upwards.  Given these statements, stock prices most likely exhibit the following components:

While virtually all time-series exhibit a ... component, not all time-series exhibit other components

Assume that the year 2000 is used as the index base period and that sales were 12 million in the year 2000. If sales were 18 million in the year 2006, the simple index number for the year 2006 is:

Which index is more likely to be used by policymakers to adjust wages and pensions for inflation?

The sales data for the company measured in the week following an increased ad campaign would be considered:

... data is a set of data values observed at successive points in time

General Electric Corporation tracks employee turnover annually. It currently has a data set that contains turnover for the past 20 years. What type of data does it have?