A trade magazine routinely checks the drive-through service times of fast-food r

Question

A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 603 customers in one fast-food chain's drive-through has s lower bound of 168.0 seconds and an upper bound of 171.6 seconds. What does this mean? Choose the correct answer below. A. One can be 95% confident that the mean drive-through service time of this fast-food chain is 169.8 seconds. B. There is a 95% probability that the mean drive-through service time of this fast-food chain is between 168.0 seconds and 171.6 seconds. C. One can be 96% confident that the mean drive-through service time of this fast-food chain is between 168.0 seconds and 171.6 seconds. D. The mean drive-through service time of this fast-food chain is 169.8 seconds 95% of the time.

Explanation / Answer

option C is correct: one can be 95% confident that the mean drive -through service time of this fast food chain is between 168 and 171.8.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.