How many Kleenex should the Kimberly Clark Corporation package of tissues contain? Researchers determined that 60 tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold: 【图片】= 52, s = 22. Give the null and alternative hypotheses to determine if the number of tissues used during a cold is less than 60.