hi, can someone help me answer this question. thank you

2. AirAsia Group Bhd has launched a special promotion of 50 per cent discount on the returning fare when customers booked a round trip ticket applicable for any Malaysian domestic flights between July 20 to July 24 for the travel period from Aug 4 to Dec 12 this year. The price for the ticket to Langkawi from Aug 4 to Dec 12 are summarized below: Price (RM) Number of Tickets 66.00-75.00 15 76.00- 85.00 40 86.00-95.00 60 96.00-105.00 45 Above 106.00 40 a. Assuming the data follow a normal distribution, can the sales manager say that the average price of the ticket to Langkawi during this particular period is above the average of RM 93.00. Use 5% level of significance. b. Construct a 95% confidence interval for the true price of AirAsia ticket to Langkawi. (20 marks)