Please show all work, no Minitab. The thickness of the struts of a cardiac stent

Question

Please show all work, no Minitab.

The thickness of the struts of a cardiac stent is an important quality parameter. Data on thickness(in cm) are given for 10 samples of 3 stents each.

Sample                 X1                          X2                          X3

1                            .0629                    .0636                    .0640

2                            .0630                    .0631                    .0622    

3                            .0628                    .0631                    .0633

4                            .0615                    .0625                    .0619

5                            .0619                    .0628                    .0630

6                            .0613                    .0629                    .0634

7                            .0630                    .0639                    .0625

8                            .0619                    .0644                    .0632        

9                            .0623                    .0626                    .0633

10                          .0631                    .0631                    .0633

B) Estimate the process standard deviation.

C) If the specifications are at .0630 inches +-.0015 in, discuss the process capability.

D) What is the expected proportion of samples above the upper specification limit?

Explanation / Answer

Please show all work, no Minitab. The thickness of the struts of a cardiac stent

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