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

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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.  Day Range Mean Std.Dev. 1105.2503.494923115.25010.306031320.3754.926242122.8758.39115358.50011.37676187.8756.937272511.2508.58158307.8759.523591710.2506.364010229.5007.874011277.8758.7086122612.8759.3723\begin{array}{rrrl}\text { Day}&\text { Range}&\text { Mean }&\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, based on the X chart, it appears that the process is in control.  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}{rrrl}\text { Day}&\text { Range}&\text { Mean }&\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, based on the X chart, it appears that the process is in control.

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Definitions:

Apathy

A lack of feeling, emotion, interest, or concern about something.

Anxiety Disorder

A mental health disorder characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one’s daily activities.

Manic-depressive

Manic-depressive is an older term for bipolar disorder, a mental health condition characterized by extreme mood swings including emotional highs (mania or hypomania) and lows (depression).

Affective Disorder

A group of mood disorders in which a person's emotional state or mood is inconsistent with their circumstances and interferes with their ability to function.

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