A Sample of 125 Tobacco Smokers Who Recently Completed a New

question 115

Multiple Choice

A sample of 125 tobacco smokers who recently completed a new smoking-cessation program were asked to rate the effectiveness of the program on a scale of 1 to 10, with
10 corresponding to "completely effective" and 1 corresponding to "completely
Ineffective". The average rating was 4.1 and the standard deviation was 4.0.
Construct a 95% confidence interval for the mean score.

• A) \(3.8 < \mu < 4.4\)
• B) \(0 < \mu < 4.1\)
• C) \(3.4 < \mu < 4.8\)
• D) \(3.7 < \mu < 4.5\)

---

Definitions:

Robotic Delivery

The use of autonomous robots to transport goods and packages from a retailer or warehouse directly to consumers.

Virginia

A state located on the East Coast of the United States, known for its significant history and as the birthplace of eight U.S. presidents.

Idaho

A state located in the northwestern region of the United States, known for its mountainous landscapes and vast outdoor recreational areas.

MIT Technology Review

A media company owned by the Massachusetts Institute of Technology (MIT) that publishes articles and analyses on emerging technologies and their impacts on society and business.