Researchers determined that 60 Puffs tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Puffs users yielded the following data on the number of tissues used during a cold: x-bar = 52 and s = 22. Suppose the test statistic does not fall in the rejection region at alpha = 0.05. Which of the following conclusions is correct?
(d) Both a and c.
(b) At alpha = 0.05, we reject H0.
(c) At alpha = 0.05, we accept H0.
(a) At alpha = 0.05, we do not reject H0.