Question: PLEASE ANSWER FAST what is the answer for number 15 21 PROBLEM A: Use the following to answer questions 14 - 16: A quality analyst

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what is the answer for number 15

21 PROBLEM A: Use the following to answer questions 14 - 16: A quality analyst wants to construct a sample mean chart for controlling a packaging process. Each day last week, he randomly selected four packages and weighed each. The data from that activity appears below. Weight Day Package 1 Package 2 Package 3 Package 4 Monday 23 22 23 24 Tuesday 23 21 19 21 Wednesday 20 19 20 Thursday 18 19 20 19 Friday 18 20 22 20 14. The mean of all sample means is: A) 20 B) 23 C) 20.6 D) 19 E 21 15. Calculate 30 upper and lower control limits for the Mean. (a) UCL = 23.05; LCL = 18.15 (b) UCL = 22.64; LCL = 18.56 (c) UCL = 26.6; LCL = 14.6 (d) UCL = 22.21; LCL = 18.98 (e) UCL = 23.7; LCL = 17.5 E) mo

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