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. 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.) OA. The mean drive-through service time of Taco Bell is OB. There is a OC. One can be On seconds % of the time. % probability that the mean drive-through service time of Taco Bell is between 80% confident that the mean drive-through service time of Taco Bell is between seconds and seconds and seconds. seconds. 4

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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 Taco
Bell'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 is
seconds % of the time.
OB. There is a
% probability that the mean drive-through service time of Taco Bell is between
OC. One can be 80% confident that the mean drive-through service time of Taco Bell is between
On
an example
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11/12/2022
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Transcribed Image Text:= 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. 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 is seconds % of the time. OB. There is a % probability that the mean drive-through service time of Taco Bell is between OC. One can be 80% confident that the mean drive-through service time of Taco Bell is between On an example n . Ins Get more help. O I "' hp (...) (T H 101 √ 5 seconds and seconds and (,0) seconds. seconds. More D Clear all 66°F Partly sunny Check answer ^ 12:57 PM 11/12/2022 X 12
K
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. 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 is
OB. There is a
OC. One can be
OD. One can be
seconds. % of the time.
% probability that the mean drive-through service time of Taco Bell is between
80% confident that the mean drive-through service time of Taco Bell is between
% confident that the mean drive-through service time of Taco Bell is
ew an example Get more help -
담
= 4
√1
seconds and
seconds and
seconds.
Vi I. (1)
seconds.
seconds.
More
(?))
Clear all
66°F Partly sunny
Check answer
insert
12:57 PM
11/12/2022
prt sc
X
12
Transcribed Image Text:K 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. 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 is OB. There is a OC. One can be OD. One can be seconds. % of the time. % probability that the mean drive-through service time of Taco Bell is between 80% confident that the mean drive-through service time of Taco Bell is between % confident that the mean drive-through service time of Taco Bell is ew an example Get more help - 담 = 4 √1 seconds and seconds and seconds. Vi I. (1) seconds. seconds. More (?)) Clear all 66°F Partly sunny Check answer insert 12:57 PM 11/12/2022 prt sc X 12
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