A factory manufactures two types of pipes made from different materials: Type A and Type B

A factory manufactures two types of pipes made from different materials: Type A and Type B. Both types are expected to have a diameter of 675 millimetres. A sample of five pipes of each type is selected and measured. The diameters were found to be the following: Type Be Type Ae 668, 670, 675, 678, 684 673, 674, 675, 677,6794 Which type of pipe is providing on average better quality? Hint: You can consider two different definitions of quality: central tendency and consistency. Both can be measured using your answers to part a.' What would be the effect on your answers in parts a. and b. above if the last value for Typet' B was 689 instead of 679?4 o N z(– X) I – u II ΣΧ? – ηX2 I – U or = zS z(X - ?X)3 tollowing equations: