Sarah Soliz, Director of Quality Programs, Is Designing $\bar { x }$

question 24

Multiple Choice

Sarah Soliz, Director of Quality Programs, is designing $\bar { x }$ and R charts for the rod shearing process at Stockton Steel.She has 26 samples of rod length, and each sample included measurements of 5 rods.The mean of the 26 sample means is 112 inches, and mean of the 26 ranges is 0.15 inch.The upper control limit for her R chart is ____.

• A)0.150
• B)10.57
• C)0.317
• D)2.114
• E)0.713

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Definitions:

Average Return

The simple mathematical average of a series of returns generated over a period of time.

NPV Technique

A method used in capital budgeting to evaluate the profitability of an investment or project, by calculating the net present value of all cash flows associated with it.

Mutually Exclusive

Events or choices that cannot occur or be taken at the same time.

Capital Projects

Large, longer-term investments undertaken by a business or government to create, maintain, or expand its operational capacity.