Serena Is Evaluating Three Different Models of Hair Dryers,Model A,Model

question 119

Multiple Choice

Serena is evaluating three different models of hair dryers,Model A,Model B,and Model C.She assigns belief ratings from 1= very poor to 10= very good and importance ratings from 10= most important to 1=least important.She sets a minimum mental cutoff point of 5 for all the features.According to the conjunctive rule,which of the following is true?
$\begin{array}{|l|c|c|c|c|}\hline{\text { Attributes }} & \text { Importance } & \text { Model A } & \text { Model B } & \text { Model C } \\\hline & & \text { Belief ratings } & \text { Belief ratings } & \text { Belief ratings } \\\hline \text { Low price } & 8 & 7 & 4 & 3 \\\hline \text { Styling } & 9 & 6 & 7 & 4 \\\hline \text { Power efficiency } & 6 & 8 & 10 & 2 \\\hline\end{array}$

• A)She selects Model A,as all the features surpass 5.
• B)She selects Model B,as it has the highest power efficiency of 10.
• C)She selects Model C,as all the features score lower than the mental cutoff.
• D)She selects Model B,as it scores the highest on the styling criterion which is also the most important criterion.
• E)She selects Model A,as it scores highest on the low price attribute.

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Definitions:

Odds Ratio

A statistic that quantifies the strength of the association between two events, typically used in case-control studies.

Probability

A numerical expression ranging from 0 to 1 that indicates the probability of an event taking place.

Correlation Matrix

A table showing the correlation coefficients between sets of variables to summarize their mutual relationships.

Stepwise Regression

A method of fitting regression models in which the choice of predictive variables is carried out by an automatic procedure, entering and removing predictors based on specific criteria.