% How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 62 tissues during a cold. Suppose a random sample of 100 people yielded the following data on the number of tissues used during a cold: I = 50, s = 16. Identify the null and alternative hypothesis for a test to determine if the mean number of tissues used during a cold is more than 62. \"Ho:u=62vs.Ha:u>62 H0: u = 62 vs. Ha: u 62 H0: u = 62 vs. Ha: u 62 vs. Ha: us62 Determine the critical values for a two-tailed test of a population mean at the a = 0.05 level of significance based on a sample size of n = 13. Assume the sample standard deviation is known. 11.78 \\ 11.77 x 12.16 \\ 12.18 \\ A final exam in MAT 102 has a normal distribution and a mean of 73 with standard deviation 7.8. If 24 students are randomly selected, find the probability that the mean of their test scores is greater than 78. 0.0036 x 0.0008 '\\ 0.0103 x 0.8962