plz solve all sub parts in 60 mins i will thumb up

Question 1 John is planning to open a western restaurant in Kuala Lumpur. He has conducted a survey regarding the average spending per visit in various western restaurants nearby the area. He has collected 40 survey cases on the average spending per visit in the western restaurants as shown in Table Q1 (Appendix 1). However, to secure a larger sample size, which can provide a more reliable result, you need to assist John to add extra 10 cases into Table 01. You may get this information by doing survey among your family members. Use the 50 survey cases for the following tasks. Apply statistic method in grouping the 50 data into equal width classes. Identify the mean and median for the grouped data. (7 marks) b According to a study, a westem restaurant located in Kuala Lumpur would make a profit if the customer's average spending per visit is above RM150. Refer to data collected in part a, perform an appropriate hypothesis test and draw conclusion whether John should open the western restaurant in Kuala Lumpur. List down all assumptions/values used for the calculation (10 marks) C. Simpson's rule is commonly used to approximate the definite integral. John would like to know the water consumption (in liter) of a dishwasher which is represented by F(x) as shown in Eqn Q1. Apply Simpson's rule with 4 subintervals (n = 4 or 4 blocks) and use your own choice of a, where a is any real number (3