Find the lower confidence limit of the 95 confidence interval for ...

[lidoalex]

Find the lower confidence limit of the 95 confidence interval for the difference between the means of the two populations.
 
  A) 13.48
  B) 17.71
  C) 22.79
  D) 25.83

Question 2

The time series that reflects a wavelike pattern describing a long-term trend that is generally apparent over a number of years is called the:
 
  A) trend component.
  B) cyclical component.
  C) seasonal component.
  D) irregular component.

[lgoldst9]

Answer to Question 1

B

Answer to Question 2

B