A Foreman Wants to Use An $\bar { X }$ Chart to Control the Average Length of the Bolts Manufactured

question 88

Multiple Choice

A foreman wants to use an $\bar { X }$
Chart to control the average length of the bolts manufactured.He has recently collected the six samples given below. $$\begin{array} { c c c c c } \text { Sample } & & & & \\1 & 1.99 & 2.01 & 2.02 & 2.02 \\2 & 2.00 & 2.00 & 2.01 & 2.01 \\3 & 1.98 & 1.99 & 2.01 & 1.98 \\4 & 2.01 & 2.02 & 2.02 & 1.99 \\5 & 1.99 & 1.99 & 2.01 & 1.99 \\6 & 2.03 & 1.98 & 2.03 & 2.04\end{array}$$
Determine the LCL and the UCL for the R chart.

• A)[0,.0685]
• B)[0,.076]
• C)[0,.03]
• D)[0,.0601]

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Definitions:

Gross Sales

The total sales revenue of a company before any deductions for returns, allowances, or discounts.

Net Sales

The total revenue from sales after deducting returns, allowances for damaged or missing goods, and discounts.

Sales Discounts

Concessions granted by sellers to buyers as an incentive to encourage prompt payment, recorded as a deduction from revenue.

Sales Returns and Allowances

A reduction in sales revenue due to the return of or allowances for unsatisfactory goods.