A new coin machine printing nickels is being tested by the Mint. Ten samples, with each using 10 nickles, are weighed. Each nickle should weigh 5 g and each sample should weigh 50g. The data collected is shown in the chart below:

Sample	Sample Mean (g)	Range (g)
1	49.998	0.017
2	50.001	0.011
3	50.025	0.025
4	50.121	0.005
5	50.012	0.001
6	49.953	0.004
7	49.999	0.007
8	50.002	0.022
9	50.007	0.001
10	49.099	0.014

A) Determine the upper and lower control limits and the overall mean for the x bar chart and the R chart.

B) Draw the charts and plot the values of the sample means and range.

C) Should the mint invest in this new machine? Explain