A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that r

Question

3 years ago

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A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that r

esults from examining 576 customers in one fast-food chain's drive-through has a lower bound of 178.0 seconds and an upper bound of 181.0 seconds. What does this mean?

Mathematics

2 answers:

Aleksandr [31] · Answer 1 · 2022-01-30T07:07:42+03:00

Answer:

This means that we are 80% confident that the mean of the drive-through service time is between 178.0 seconds and 181.0 seconds. This conclusion was obtained after examined 576 customers. If you want a greater % of confidence you will have to lower the lower bound and increase the upper bound

Rom4ik [11] · Answer 2 · 2022-01-30T08:40:07+03:00

Answer:

This means that we are 80% confident that the mean drive- through service time of fast food service is between 178.0 seconds and 181.0 seconds

Step-by-step explanation:

A confidence Interval tells us that where the true value of parameter lies with certain confidence, It has a lower limit and an upper limit in this case it means with a confidence of 80% the mean drive- through service time of fast food service is between 178.0 seconds and 181.0 seconds

A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. An 80​% confidence interval that r

A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that r