Simple random sampling differs from systematic sampling because: ...

[karen]

Simple random sampling differs from systematic sampling because:
 
  A) subjects are selected using a table of random numbers
  B) subjects volunteer for either a control or experimental group
  C) subjects are selected by choosing every 10th person
  D) all subjects are selected for inclusion in the study

Question 2

Simple regression is sometimes called ordinary least-squares regression because the equation:
 
  a. Requires information about r squared
  b. Minimizes the value of r squared
  c. Is equal to the sum of squared prediction errors
  d. Minimizes the sum of squares of prediction errors

[Alyson.hiatt@yahoo.com]

Answer to Question 1

A

Answer to Question 2

D

[karen]

Thanks for the timely response, appreciate it

[Dinolord]

Wow, this really help