The value of “t” will increase as the standard deviation of the difference _____ and the difference between means ____.
a. increase; decreases
b. increases; increases
c. decreases; decreases
d. decreases; increases
e. None of the above.
Wouldn't this answer be either A or B since it does increase.
for t to get larger you will need the numerator of the problem to get larger and the denominator to get smaller.
The formula has the difference between the means divided by the standard deviation.
I would say d. The standard deviation decreases and the difference between the means increases.