A new coin machine printing nickels is being tested by the Mint. Ten samples, with each using
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Question:
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
Related Book For
Applied Statistics and Probability for Engineers
ISBN: 978-1118539712
6th edition
Authors: Douglas C. Montgomery, George C. Runger
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