Tcv = 3.35 and tobt = 3.55 . Based on these results, we _____.

tcv = 3.35 and tobt = 3.55 . Based on these results, we _____.
 
  a. reject Ho
  b. fail to reject Ho
  c. accept Ho
  d. reject Ha

Question 2

Which of the following is an assumption of the t test for independent groups?
 
  a. The data are interval or ratio.
  b. The underlying distributions are bell-shaped.
  c. The observations are independent.
  d. All of the above are assumptions of the t test for independent groups.

Question 3

Which of the following is NOT an assumption of the t test for independent groups?
 
  a. The data are interval or ratio.
  b. The underlying distributions are bell-shaped.
  c. The observations are independent.
  d. There is no homogeneity of variance.