14. A manager of a local fast food restaurant wants to determine the average amount of time it takes from when a customer enters
the drive-through line until they receive their order, regardless of the time of the day and the day of the week. That is, he would like to know the true average drive-through wait time for all his customers. Which of the following methods would be most likely to estimate the desired parameter with low bias and low variability?
(A)Select a random sample of 100 customers over a period of one month, determine each selected customer’s wait time, then compute the average wait time for all 100 customers.
(B)Select a random sample of 100 customers over a weekend, determine each selected customer’s wait time, then compute the average wait time for all 500 customers.
(C) Select a random sample of 500 customers on a randomly selected weekday, determine each selected customer’s wait time, then compute the average wait time for all 500 customers.
(D)Select a random sample of 500 customers over a weekend, determine each selected customer’s wait time, then compute the average wait time for all 500 customers.
(E) Select a random sample of 500 customers over a period of one month, determine each selected customer’s wait time, then compute the average wait time for all 500 customers.
1 answer:
You might be interested in
Answer:
Explanation:
The reason why Buddhism first flourished in China was because the rulers used Buddhism as a tool to govern their subjects with religion.From the aristocracy to the common people are the subjects that the rulers need to rule
Answer:
b.believes that travel is most enjoyable when it involves little advance planning
Explanation:
Sana nakatulong
Answer:
4
Explanation:
Proxima Centauri is about 4.22 light-years from Earth and is the closest star other then the sun
Answer:
7/25
Explanation:
cos2A=1-2sin^2A
or, Cos2A=1-2.(3/5)^2
or, Cos2A=1-2(9/25)
or, Cos2A=1-(18/25)
or, Cos2A=(25-18)/25
or, Cos2A=7/25
It will be suspended for one year
