At a Recent Car Show, a Sample of 125 People

question 42

Multiple Choice

At a recent car show, a sample of 125 people produced the following results. Calculate the value of chi-square to determine if there is a relationship between age and model preferred.

• A) 9.89, there is a significant relationship between age and model preferred at the 5% level of significance.
• B) 9.99, there is a significant relationship between age and model preferred at the 5% level of significance.
• C) 8.89, there is insufficient evidence to show a significant relationship between age and model preference.
• D) 8.98, there is significant relationship between age and model preferred at the 5% level of significance.

---

Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, used in statistics to quantify the spread of a distribution around the mean.

Standard Sample

A sample or benchmark against which the quality or performance of other items can be measured or judged.

Average Time

A metric that represents the mean duration taken for a specific process or activity to occur, often used in operations and project management.

Standard Time

The predetermined amount of time allocated for the completion of a specific task, under normal working conditions.