1. The mean caffeine content per cup of regular coffee served at a certain coffee shop is supposed to be 100mg. A test is made of H0:=100,H1:100H0:=100,H1:100 and the null hypothesis is rejected. State an appropriate conclusion. Question 1 options: A. The mean caffeine content is not equal to 100 mg. B. The mean caffeine content is greater than 100 mg. C. The mean caffeine content may be equal to 100 mg. D. Further testing is required to draw an accurate conclusion. 2. A bakery states that the sugar content if its signature cookie is 23 g. A customer believes that the mean sugar content of this type of cookie is less than 23 g. State the appropriate null and alternate hypothesis. Question 2 options: A. H0:=23,H1:<23H0:=23,H1:<23 B. H0:23,H1:<23H0:23,H1:<23 C. H0:23,H1:>23H0:23,H1:>23 D. H0:=23,H1:23 3. A test is made of H0:=5,H1:<5H0:=5,H1:<5 A sample of size 87 is drawn and sample mean is found to be 4.5. The population standard deviation is 25. Compute the value of the test statistic z. Question 3 options: A. z = - 1.19 B. z = - 0.19 C. z = 1.19 D. z = 0.19