When comparing two population means using data that are gathered ...

[newyorker26]

When comparing two population means using data that are gathered from a matched pairs experiment, the test statistic for D is Student t-distributed with v = nD - 1 degrees of freedom, provided that the differences are normally distributed.
  Indicate whether the statement is true or false

Question 2

Each forecast using the method of exponential smoothing depends on all the previous observations in the time series.
  Indicate whether the statement is true or false

[meryzewe]

Answer to Question 1

T

Answer to Question 2

T