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:

Congressional Committees

Subsidiary groups within the U.S. Congress tasked with specific duties, including drafting legislation and overseeing governmental operations.

Fugitive Slave Law

Laws passed by the United States Congress in 1793 and 1850 that provided for the return of slaves who escaped from one state into another state or territory.

Runaway Slaves

Enslaved individuals who fled from their owners in search of freedom or less oppressive conditions, a common phenomenon in the history of slavery in the Americas.

Underground Railroad

A network of secret routes and safe houses established in the United States during the early to mid-19th century, used by African American slaves to escape into free states and Canada.