Instruction 11-1
an Airline Wants to Select a Computer Software

question 85

Multiple Choice

Instruction 11-1
An airline wants to select a computer software package for its reservation system. Four software packages (1, 2, 3, and 4) are commercially available. The airline will choose the package that bumps as few passengers as possible during a month. An experiment is set up in which each package is used to make reservations for five randomly selected weeks. (A total of 20 weeks was included in the experiment.) The number of passengers bumped each week is obtained, which gives rise to the following Microsoft Excel output:
$$\begin{array}{l}\text { ANOVA }\\\begin{array} { | l | c | c | c | c | c | c | } \hline \begin{array} { l } \text { Source of } \\\text { Varlation }\end{array} & \boldsymbol { S S } & d f & \boldsymbol { N S } & \boldsymbol { F } & \rho _ { \text {-vahe } } & \text { F crit } \\\hline \text { Between Groups } & \mathbf { 2 1 2 . 4 } & \mathbf { 3 } & & \mathbf { 8 . 3 0 4 9 8 5 } & \mathbf { 0 . 0 0 1 4 7 4 } & \mathbf { 3 . 2 3 8 8 6 7 } \\\hline \text { Within Groups } & \mathbf { 1 3 6 . 4 } & & \mathbf { 8 . 5 2 5 } & & & \\\hline & & & & & & \\\hline \text { Total } & \mathbf { 3 4 8 . 8 } & & & & & \\\hline\end{array}\end{array}$$
-Referring to Instruction 11-1,the total degrees of freedom is

• A) 19.
• B) 16.
• C) 4.
• D) 3.

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Definitions:

Umbilical Cord Blood Sampling

The process of collecting blood from the umbilical cord at birth, often used for medical treatments and research.

Ultrasound

A medical imaging technique that uses high-frequency sound waves to visualize internal body structures.

Fetal Biopsy

A medical procedure in which a small sample of tissue is taken from the fetus to test for abnormalities.

Amniocentesis

A medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections, involving the extraction of a small amount of amniotic fluid for testing.