Calculate a paired t on the following scores: Group 1 Group 2 13 21 10 19 6 15 1 13 ...

Calculate a paired t on the following scores:
   Group 1 Group 2
   13 21
   10 19
   6 15
   1 13
 
  What will be an ideal response?

Question 2

The originator of the product-moment correlation technique was
 
  a. Karl Gauss
  b. Blaise Pascal
  c. Karl Pearson
  d. Alexandra McKenna

Question 3

When the array of points on a scatter plot slopes from lower left to upper
  right, then
 
  a. the correlation is positive
  b. the correlation is negative
  c. there is no correlation
  d. no predictions can be made

Question 4

For question 91, should Ho be rejected as a two-tail t? If
  rejected, state the alpha level.
 
  What will be an ideal response?