Solve c

The operations manager of a plant that manufactures tires wants to compare the actual inner diameters of two grades of tires, each of which is expected to be 575 millimeters. Samples of five tires from each grade were selected, and the results representing the inner diameters of the tires, ranked from smallest to largest, are shown below. Complete parts (a) through (c) below. Grade X Grade Y 566 573 577 581 587 571 575 577 580 583 I he median for Grade X Is 5/ / mm. (Type an integer or a decimal.) The median for Grade Y is 577 mm. (Type an integer or a decimal.) The standard deviation for Grade X is 7.95 mm. (Type an integer or decimal rounded to two decimal places as needed.) The standard deviation for Grade Y is 4.6 mm. (Type an integer or decimal rounded to two decimal places as needed.) b. Which grade of tire is providing better quality? Explain. Choose the correct answer below. A. Grade X provides better quality because its mean is much smaller. B. Grade X provides the better quality. While the mean of Grade Y is closer to the expected mean, the standard deviation of Grade X is much smaller. C. Grade Y provides the better quality. While the mean of Grade X is closer to the expected mean, the standard deviation of Grade Y is much smaller. D. Grade Y provides better quality because its mean is much smaller. c. What would be the effect on your answers in (a) and (b) if the last value for Grade Y were 590 instead of 583? Explain. Choose the correct answer below. When the fifth Grade Y tire measures 590 mm rather than 583 mm, Grade Y's mean inner diameter becomes 577.4 mm, which is|larger than Grade X's mean inner diameter, and Grade Y's standard deviation changes from 3.53 mm to 6.31 mm. In this case, Grade X's tires are providing worse quality in terms of the mean inner diameter. (Round to two decimal places as needed.) Vi More Help Me Solve This View an Example Get More Help - Clear All Check Answer MacBook Air