can somebody check this and explain your solution? I am still unsure about the steps/formulas to find "to what level would it have to reduce the standard deviation in the process to meet the target?" any feedback would be greatly appreciated as I am trying to learn this. thank you! also I am unsure if the question is asking for the standard deviation as the final solution? or the 0.0455 answer.

(30/100 pts) A bottle-filling process has a low specification limit of 1.8 liter and upper specification limit of 2.2 liter. The standard deviation is 0.15 liter, and the mean is 2 liter. The company now wants to reduce its defect probability as 0.0455. To what level would it have to reduce the standard deviation in the process to meet this target (you can use Excel spreadsheet or Table 9.1 in the textbook)? 12.00 O=0.1000 D-2 O=0. P(1.BCX(2.2) -P661.3-2)/0.1