SCENARIO 18-8
Recently, a University Switched to a New Type

question 2

True/False

SCENARIO 18-8
Recently, a university switched to a new type of computer-based registration. The registrar is
concerned with the amount of time 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. $$\begin{array} { r l r l } \underline { \text { Day } } & \text { Range } & \underline { \text { Mean } } & \underline { \text { Std.Dev. } } \\1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$$
-Referring to Scenario 18-8, based on the $\bar { X }$ chart, it appears that the process is in
control.

Understand and apply appropriate methods to calculate the mean of a dataset.

Understand and apply appropriate methods to calculate the median of a dataset.

Apply rounding rules correctly according to standard mathematical conventions.

Calculate the quotient of numbers to the required decimal places and round the result accurately.

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Definitions:

Sexual Reproduction

A biological process that creates a new organism by combining the genetic material of two organisms.

Asexual Reproduction

A mode of reproduction involving only one parent that results in offspring genetically identical to the parent, occurring without the fusion of gametes.

Crossing Over

Crossing over is a genetic process that occurs during meiosis where homologous chromosomes exchange segments, leading to genetic diversity in gametes.

Alleles

Variants of a gene that determine distinct traits that can be passed from parents to offspring.