Measures of Variation, statistics homework help

An auto transmission manufacturer receives ball bearings from two different suppliers. The ball bearings must have a specified diameter of 16.30 mm with a tolerance of plus or minus±0.1 mm. Recent shipments from the two suppliers had ball bearings with the following diameters. Complete parts (a) through (c).

Supplier A:

16.22

16.27

16.32

16.34

16.36

16.42

16.45

Supplier B:

16.18

16.21

16.24

16.36

16.37

16.42

16.45

a. Find the mean and standard deviation for each of the two data sets.

Find the mean and standard deviation for the diameters of the ball bearings from Supplier A.

mean=

s=

(Round to the nearest hundredth as needed.)