PSYC 220 intro to stat methods in PSYC

Question 15 4 pts A study was done to see if the average coffee drinker stayed awake for more hours per day than those who did not drink coffee. The study's results can be summarized as follows: The coffee drinkers in the present study were awake for an average of 17.8 hours per day (SD - 1.4), compared to non-coffee drinkers in the population that are awake for 14 hours on average (SD-1.3). The _test revealed that the than coffee drinkers were awake for significantly more hours per day. t(28) - 2.6, p <.05 ci d="0.15." from this statement answer the following questions. how many participants were in study points what does number for question suggest about shape of t-distributions test point there a probability that mean hours awake coffee drinkers is between and per day or false difference non-coffee can be considered large according to statistical>