When the population variances are unknown and unequal, we ...

[kellyjaisingh]

When the population variances are unknown and unequal, we estimate each population variance with its ___________________ _ variance.
 Fill in the blank(s) with correct word

Question 2

We compute the three-period moving averages for all time periods except the first and the last.
  Indicate whether the statement is true or false

[stanleka1]

Answer to Question 1

sample

Answer to Question 2

T

[kellyjaisingh]

Excellent

[bdobbins]

Thanks for the timely response, appreciate it