just need help with these two!

A maneger wishes to build a 3-sigma range chart lor a process. The samplo size is five, the mean of sample means is 49.25 , and the average range is 4.70 . From Table 56.1 , the approprate value of 03 is 0 , and 04 is 2.115. Whal arn the UCL and LCL, respectively, for this range chart? (Do not round intermediate caleulations. Round final answer to two docimal places.) A. 63.35 and 35.15 8. 9.94 and 0.00 c. 22.16 and 0.00 D. 53.95 and 44.55 E. 6.82 and 2.59 Mrs. Crabapple has a dass with three studeots, and she has had four quizzos so far this semester. She has croaled control charts to detimnime if the irarabion in shiderts mooins from quiz to quiz is extibiting only natural variation. Ench of the quiz scores are shown below. The uppor and lower control timits for the x bar chart are 109.6 and 34.9 , raspechiely. The vocer and iowor controi kmits for the Rechart are 93,95 and 0, respectively. Is the process in control? A Yes 8. No