The t-test for the difference between the means of two ...

[Bob-Dole]

The t-test for the difference between the means of two independent populations assumes that the respective:
 a. sample sizes are equal. c. means are equal.
  b. populations are normal. d. All of these choices are true.

Question 2

In exponentially smoothed time series, the smoothing constant w is chosen on the basis of how much smoothing is required. In general, a small value of w such as 0.1 results in very little smoothing, while a large value of w such as 0.8 results in too much smoothing.
  Indicate whether the statement is true or false

[Benayers]

Answer to Question 1

B

Answer to Question 2

F

[Bob-Dole]

TYSM

[xiazhe]

Gracias!