SCENARIO 15-8 Recently, a University Switched to a New Type-Referring to SCENARIO 15-8, an R Chart Is to Be

The Answer of SCENARIO 15-8 Recently, a University Switched to a New Type-Referring to SCENARIO 15-8, an R Chart Is to Be

SCENARIO 15-8 Recently, a University Switched to a New Type-Referring to SCENARIO 15-8, an R Chart Is to Be

The Answer of SCENARIO 15-8 Recently, a University Switched to a New Type-Referring to SCENARIO 15-8, an R Chart Is to Be

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SCENARIO 15-8
Recently, a University Switched to a New Type

question 85

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SCENARIO 15-8
Recently, a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time (hours) students are spending on the computer registering under the new system.She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering.The range, mean, and standard deviation of the times required to register are in the table that follows. $\begin{array}{cccc}\underline{\text { Day }} & \underline{\text { Range}}& \underline{\text { Mean }}& \underline{\text { Std.Dev. }}\\1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$

-Referring to SCENARIO 15-8, an R chart is to be constructed for the time required to register.One way to create the lower control limit involves multiplying the mean of the sample ranges byD3.For this data set, the value of D3 is .

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Definitions:

Conversion Costs

The combined costs of direct labor and manufacturing overhead expenses required to convert raw materials into finished goods.

Work in Process

Refers to goods that are in various stages of being made within a factory but are not yet completed.

Processing Department

A division within a manufacturing facility where a specific type of production process is carried out, often part of a larger assembly line.

Molding Department

A specific division within a manufacturing facility where items are shaped and formed using various molds.