Help me please, it's rush. Show your solution in step by step process.

"'" ll. Read and analyze the given situations and test its hypothesis using the steps in hypothesis testing. Write all your solutions and answers on a bond paper (any size). Criteria for checking: Step1 - 2 pts Step4- 5pts Step2- 2pts Step5- 2pts 11. Ten randomly selected groceries in Tagaytay has an average sale of 41,000 every 6 months with a standard deviation of 5.2 thousand dollars. Is it enough evidence to conclude that the groceries are not selling an average of 42,000 every 6 months? Test the hypothesis at a level of signicance of 5%. 12. D.G Co. has an average gross sale of P3? million per week from their products in all of their outlets with a standard deviation of P6 million. An area manager found out that the average gross sales from the 32 outlets under his jurisdiction is P343 million per week. Is the mean sales of the products of all of the outlets significantly different from the mean sales of the outlets in the area of the manager? Use 5% level of significance. 13. A teacher wants to find out if the webcasting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Two classes of approximately equal intelligences were selected. From one class, the teacher randomly selected a group of students as experimental group for webcasting methods. From another class. the teacher then selected another group of students as sample for existing standard method of teaching. After one trimester. the same test were given to the students. Their mean scores are shown in the following table: Methods of Teachin Standard Deviation Woboastin- Method -_ Existing standard - 14. A certain manager wishes to nd out if the proposed system of operations increases the gross sales of the products of the acmpared with existing system. To compare the results. six branches for each system are randomly selected for assessment. The result is as follows: Pro-sad 8 atom m Averaa sales in million -3- Standard Deviation -E_ Numberofbranches __ Is the proposed system significantly better than the existing system? Test at 0.01 level of significance