A study tests the hypothesis that, on average, individuals will remember more words in a recall memory test when they are given a new cognitive enhancement drug than when they are given a placebo. The scores (numbers of words remembered) are provided for five individuals tested in both conditions. Drug condition: 7, 9, 8, 9, and 8 Placebo condition: 5, 7, 6, 8, and 9 The value for t is _____. (Give answer to 2 decimal places.)