(Solved): A tire manulacturer wants to determine the inner diameter of a certain grade of tire. Ideally, the ...

A tire manulacturer wants to determine the inner diameter of a certain grade of tire. Ideally, the diameter would be 550 mm. The data are as follows. Complete parts (a) through (c) below. \( 548,548,547,552,549,545,556,550= \) (a) Find the sample mean and median. The sample mean is \( \mathrm{mm} \). (Type an integer or a decimal. Do not round.) The sample median is \( \mathrm{mm} \). (Type an integer or a decimal. Do not round.) (b) Find the sample variance, standard deviasion, and range. The sample variance is (Round to four decimal places as needed.) The sample standard deviation is \( \mathrm{mm} \). (Round to four decimal places as needed.) The sample range is \( \mathrm{mm} \). (Type an integer or a decimal. Do not round.) (c) Using the calculated statistics in parts (a) and (b), can you comment on the quality of the tires? A. Most of the tires have the ideal diameter. The tires in this sample ore good. B. The tires in the sample have too much variance from the ideal diameter. The tires in this sample are not good: c. The mean and median of the tres are not similar to the ideal diamoter. The tres in this sample are not good. D. Most of the tires are within one standard deviation of the ideal diameter. The tres in this sample are good.