The international coffee association has reported the mean daily coffee consumption for u. s. residents as 1.65 cups. assume that a sample of 38 people from a north carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups. in a two-tail test at the 0.05 level, the test statistic (t-value) would (specify your answer to the 3rd decimal.)