Assume That the Following Confidence Interval for the Difference in the Mean

question 11

Multiple Choice

Assume that the following confidence interval for the difference in the mean time (in minutes) for male students to complete a statistics test (sample 1) and the mean time for female students to complete a statistics test (sample 2) was constructed using independent simple random samples. $- 0.2$ minutes $< \mu _ { 1 } - \mu _ { 2 } < 2.7$ minutes What does the confidence interval suggest about the difference in length between male and female test completion times?

• A) Male students take longer to complete a statistics test.
• B) Female students take longer to complete a statistics test.
• C) There is no difference in the length of time for statistics test completion between male and female students.

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Definitions:

Exothermic Reactions

Chemical processes that emit energy in the form of light or heat.

Heat

A form of energy transferred between two objects due to a temperature difference, often leading to changes in the state or temperature of a substance.

Exothermic Reaction

A chemical reaction that releases energy to its surroundings, usually in the form of heat.

Energy Diagram

A graphical representation of the energy levels of reactants and products during a chemical reaction.