Below is the seating chart of 50 students in a STP226 class. You are tasked with selecting a sample of 5 students from the class in order to accurately estimate the average Exam 1 score for the entire class. Front Desk 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Post 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Post Door 1) Considering the STP 226 class seating chart above, suppose you randomly selected a student from each row: students in seats 3, 18, 21, 34, and 50 were selected for your sample. a) What was the sampling method used? b) Is this sample going to be representative or do you see any issues with the sample? Answer briefly. 2) Considering the STP 226 class seating chart above, suppose you divided each row evenly into two groups (i.e. row 1 would be split into seats 1-5 and seats 6-10). Then you randomly selected one of these groups: students in seats 36-40 were selected for your sample. a) What was the sampling method used? b) Is the sample going to be representative or do you see any issues with the sample? Answer briefly. 3) Considering the STP 226 class seating chart on the previous page, suppose you simply walked in the room and selected the students sitting closest to the door: students in seats 39, 40, 48, 49, and 50 were selected for your sample. a) What was the sampling method used? b) Is this sample going to be representative or do you see any issues with the sample? Answer briefly. 4) Considering the STP 226 class seating chart on the previous page, suppose you decided to choose every 9th seat: students in seats 9, 18, 27, 36, and 45 were selected for your sample. a) What was the sampling method used? b) Is this sample going to be representative or do you see any issues with the sample? Answer briefly