What is the interruption in an interrupted time series design? ...

[B]

What is the interruption in an interrupted time series design?
 
  a. introduction of the independent variable
  b. instrumentation failure
  c. a period of at least two weeks
  d. a brief period when measurements are taken.

Question 2

The standard deviation of a distribution of means (sampling distribution) is called
 
  a. the mean deviation.
  b. the standard mean deviation.
  c. the standard error.
  d. the absolute mean deviation.

[cloudre37]

Answer to Question 1

A

Answer to Question 2

C

[B]

Wow, this really help

[matt95]

Thanks for the timely response, appreciate it