If, after calculating an independent-groups t test you find that ...

[BRWH]

If, after calculating an independent-groups t test you find that it is equal to zero, then
 
  a. the two sample means differ significantly.
 b. the two sample means do not differ significantly.
  c. you have done something wrong.
 d. the two population means differ significantly.

Question 2

Selection bias is likely to produce a sample with characteristics that are noticeably different from those in the population.
 
  a. True
  b. False
  Indicate whether the statement is true or false

[verrinzo]

Answer to Question 1

b

Answer to Question 2

True

[BRWH]

Thanks for the timely response, appreciate it

[xoxo123]

Gracias!