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
Answer:
640,000
Step-by-step explanation:
You go to your ten thousands place
what kind of number do you see ?Anumber higher or lower than 5?
Since its higher than a five you round up the 3 to a four.
Which gives you 640,000