QSR Magazine studied drive through times for fast-food restaurants and ABC fast-food restaurant’s had the best...
- 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 drive-through?
- What proportion of cars spends between 2 and 3 minutes in ABC’s drive-through?
- Would it be unusual for car to spend more than 3 minutes in ABC’s drive-through? Why?
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QSR Magazine studied drive through times for fast-food
restaurants and ABC fast-food restaurant’s had the best...
8. Fast food restaurants spend quite a bit of time studying the time spent in drive...
8. Fast food restaurants spend quite a bit of time studying the time spent in drive through. For a drive-through restaurant it was found that the waiting time is normally distributed with a mean 138.5 seconds and standard deviation of 29 seconds. a) What is the probability that a randomly selected car will et through the drive less than 100 seconds? What is the probability that a randomly selected car will spend at least 160 seconds? What is the probability...
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. 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. An 80% confidence interval...
A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 585 customers in one fast-food chain's drive-through has a lower bound of 169.2 seconds and an upper bound of 172.4 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. A 95% 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...
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...
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. A 95% confidence interval...
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...
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?
A study found that the mean amount of time cars spent in drive-throughs of a certain...
A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 138.6 seconds. Assuming drive-through times are normally distributed with a standard deviation of 30 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less...
A study found that the mean amount of time cars spent in drive-thrus at Burger King's...
A study found that the mean amount of time cars spent in drive-thrus at Burger King's fast food restaurant was 132.8 seconds. Assuming drive-thru times are normally distributed with a standard deviation of 25 seconds. A.) What is the probability that a randomly selected car will get through Burger King's drive-thru in less than 102 seconds? B.) What is the probability that a randomly selected car will spend more than 175 seconds in the Burger King drive-thru? C.) Would it...
8. Fast food restaurants spend quite a bit of time studying the time spent in drive through. For a drive-through restaurant it was found that the waiting time is normally distributed with a mean 138.5 seconds and standard deviation of 29 seconds. a) What is the probability that a randomly selected car will et through the drive less than 100 seconds? What is the probability that a randomly selected car will spend at least 160 seconds? What is the probability...
A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 585 customers in one fast-food chain's drive-through has a lower bound of 169.2 seconds and an upper bound of 172.4 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. 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. 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 study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 138.6 seconds. Assuming drive-through times are normally distributed with a standard deviation of 30 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less...
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