Q)
(chatquestion)...6.
The operation manager of a plant that manufactures tires want to compare the actual inner
diameter of two grades tires, each of which is expected to be 575 millimeters. A sample of five
tires of each grade has following result
Grade X
568
570
575
578
584
Grade Y
573
574
575
577
578
a.
Find mean and standard deviation of each grade.
b.
Which grade of tires is providing better quality?
...
