The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in Taco Bell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. =The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in TacoBell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. Complete parts (a) through (c).(a) What is the mean service time from the 735 customers?The mean service time from the 735 customers is 155.7 seconds(Type an integer or a decimal. Do not round.)(b) What is the margin of error for the confidence interval?The margin of error is 2.5 seconds.(Type an integer or a decimal. Do not round.)(c) Interpret the confidence interval.Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)O A. The mean drive-through service time of Taco Bell isseconds % of the time.OB. There is a% probability that the mean drive-through service time of Taco Bell is betweenOC. One can be 80% confident that the mean drive-through service time of Taco Bell is betweenOnan examplen.InsGet more help.OI"'hp(...)(TH101 √5seconds andseconds and(,0)seconds.seconds.MoreDClear all66°F Partly sunnyCheck answer^12:57 PM11/12/2022X12 KThe trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in TacoBell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. Complete parts (a) through (c).The mean service time from the 735 customers is 155.7 seconds(Type an integer or a decimal. Do not round.)(b) What is the margin of error for the confidence interval?The margin of error is 2.5 seconds.(Type an integer or a decimal. Do not round.)(c) Interpret the confidence interval.Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)OA. The mean drive-through service time of Taco Bell isOB. There is aOC. One can beOD. One can beseconds. % of the time.% probability that the mean drive-through service time of Taco Bell is between80% confident that the mean drive-through service time of Taco Bell is between% confident that the mean drive-through service time of Taco Bell isew an example Get more help -담= 4√1seconds andseconds andseconds.Vi I. (1)seconds.seconds.More(?))Clear all66°F Partly sunnyCheck answerinsert12:57 PM11/12/2022prt scX12

Question

The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in Taco Bell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. =The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in TacoBell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. Complete parts (a) through (c).(a) What is the mean service time from the 735 customers?The mean service time from the 735 customers is 155.7 seconds(Type an integer or a decimal. Do not round.)(b) What is the margin of error for the confidence interval?The margin of error is 2.5 seconds.(Type an integer or a decimal. Do not round.)(c) Interpret the confidence interval.Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)O A. The mean drive-through service time of Taco Bell isseconds % of the time.OB. There is a% probability that the mean drive-through service time of Taco Bell is betweenOC. One can be 80% confident that the mean drive-through service time of Taco Bell is betweenOnan examplen.InsGet more help.OI&#34;'hp(...)(TH101 √5seconds andseconds and(,0)seconds.seconds.MoreDClear all66°F Partly sunnyCheck answer^12:57 PM11/12/2022X12 KThe trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 735 customers in TacoBell's drive-through has a lower bound of 153.2 seconds and an upper bound of 158.2 seconds. Complete parts (a) through (c).The mean service time from the 735 customers is 155.7 seconds(Type an integer or a decimal. Do not round.)(b) What is the margin of error for the confidence interval?The margin of error is 2.5 seconds.(Type an integer or a decimal. Do not round.)(c) Interpret the confidence interval.Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)OA. The mean drive-through service time of Taco Bell isOB. There is aOC. One can beOD. One can beseconds. % of the time.% probability that the mean drive-through service time of Taco Bell is between80% confident that the mean drive-through service time of Taco Bell is between% confident that the mean drive-through service time of Taco Bell isew an example Get more help -담= 4√1seconds andseconds andseconds.Vi I. (1)seconds.seconds.More(?))Clear all66°F Partly sunnyCheck answerinsert12:57 PM11/12/2022prt scX12

Accepted Answer

Given:
n = 735
Confidence level = 80%
Formula Used:
Margin of error = Upper limit - Lower limit2…