Author Question: The strength of the correlation between two variables depends on the sign of the coefficient of ... (Read 47 times)

haleyc112 · **on:** Jun 24, 2018

The strength of the correlation between two variables depends on the sign of the coefficient of correlation.

Indicate whether the statement is true or false

Question 2

For each of the following, indicate which time series is represented. Explain your reasoning. 1 ) The dean of the Woodbury School of Business at Utah valley university finds Friday is the most popular day of the week for professors' absence.

2 ) Political advertising in the United States peaks every 4 years.3 ) Sales of a cholesterol medication decline after the product receives negative publicity in a medical journal article.

Jayson · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

FALSE

Answer to Question 2

1 ) This is an example of a seasonal fluctuation; it represents a periodic fluctuation that repeats over a period of one year or less.
2 ) This is an example of a cyclical fluctuation; it represents a fluctuation that repeats over a period that exceeds one year.
3 ) This is an example of an irregular fluctuation; it represents a fluctuation that is the result of a chance event.