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

question 106

Short Answer

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.The upper control limit for this data set is _.

---

Definitions:

Regular Dividends

Regular dividends are distributions of profit that a company decides to share with its shareholders on a recurring basis, typically quarterly or annually.

Stockholders' Equity

The remaining value of a corporation's assets after all liabilities have been subtracted, signifying the shareholders' ownership stake.

Comprehensive Income

All changes in stockholders’ equity during a period, except those resulting from dividends and stockholders’ investments.

Income Statement

A financial statement that shows a company's revenues, expenses, and net income or loss over a specified period.