Solution :
Lower bound = 169.2
Upper bound = 172.4
The correct answer is :
Option D) 80% , 169.2 , 172.4
A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval...
A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 792 customers in one fast-food chain's drive-through has a lower bound of 161.4 seconds and an upper bound of 165.0 seconds. What does this mean? Choose the correct answer below. O A. The mean drive-through service time of this fast-food chain is seconds % of the time. % confident that the mean drive-through service time of this fast-food chain is...
A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 95% confidence interval that results from examining 617 customers in one fast-food chain's drive-through has a lower bound of 159.4 seconds and an upper bound of 162.8 seconds. What does this mean? Choose the correct answer below. A.) One can be nothing ____% confident that the mean drive-through service time of this fast-food chain is between ____ seconds and ____ seconds. B.) There is a _____%...
A trade magazine routinely checks the drive through service times of fast-food restaurants. A 95% confidence interval that results from examining 792 customers in one fast food chain's drive-through has a lower bound of 1754 seconds and an upper bound of 1796 seconds What does its mean? Choose the correct answer below O A. There is a % probability that the mean drive-through Lervice time of this fam.food chain is between Seconds and seconds B. One can be % confident...
A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 613 customers in one fast-food chain drive-through has a lower bound of 178.2 seconds and an upper bound of 181.4 seconds. What does this mean? There is an 80% probability that the mean drive-through service time is between ___ and ___ seconds.
A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 767 customers in one fast-food chain's drive-through has a lower bound of 168.5 seconds and an upper bound of 172.1 seconds. What does this mean?
A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 95% confidence interval that results from examining 541 customers in one fast-food chain's drive-through has a lower bound of 161.8 seconds and an upper bound of 165.0 seconds. What does this mean?
QSR Magazine studied drive through times for fast-food restaurants and ABC fast-food restaurant’s had the best time with a mean time spent in the drive-through of 138.5 seconds. Assuming drive-through times are normally distributed with a standard deviation of 29 seconds, answer the followings, What is the probability that a randomly selected car will get thorough ABC’s drive-through in less than 100 seconds? What is the probability that a randomly selected car will spend more than 160 seconds in ABC’s...
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 90% confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Compare the results.LOADING... Click the icon to view the data on drive-through service times.
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 99% confidence interval estimate of the mean drive-through service time for Restaurant X at dinner, then do the same for Restaurant Y. Compare the results.
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 99% confidence interval estimate of the mean drive-through service time for Restaurant at dinner, then do the same for Restaurant Y. Compare the results. Construct a 99% confidence interval of the mean drive-through service times at dinner for Restaurant X.