Question
In: Statistics and Probability
The average time between arrivals of customers at a fast food restaurant drive through is 4...
The average time between arrivals of customers at a fast food restaurant drive through is 4 minutes. Assuming an exponential distribution, what is the probability that the next customer arrives in less than 3 minutes?
Group of answer choices 39.35% 52.76% 47.24% 60.65% 75.00%
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orchestra answered 1 year agoRelated Solutions
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 84.3 seconds. A manager devises a new drive-through
system that he believes will decrease wait time. He initiates the
new system at his restaurant and measures the wait time for eleven
randomly selected orders. The wait times are provided in the table
below. Based on the given data, is the new system effective? Use...
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 84.3 seconds. A manager devises a new drive-through
system that he believes will decrease wait time. He initiates the
new system at his restaurant and measures the wait time for ten
randomly selected orders. The wait times are provided in the table
below. Based on the given data, is the new system effective? Use...
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 84.3 seconds. A manager devises a new drive-through
system that he believes will decrease wait time, on average. He
initiates the new system at his restaurant and measures the wait
time for 12 randomly selected orders. Summary statistics for the 12
orders are given below: Mean 78.4 Standard deviation 14.1
Calculate the test-statistic (with...
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 84.3 seconds. A manager devises a new drive-through
system that he believes will decrease wait time. He collected a
sample of 10 and got a mean of 71.52 seconds and a sample standard
deviation of 27.16. Conduct a hypothesis test at α=0.01 to test the
manager's claim. State the hypotheses, test statistics, critical
value,...
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 86.3 seconds. A manager devises a new drive-through
system that she believes will decrease wait time. As a test, she
initiates the new system at her restaurant and measures the wait
time for 10 randomly selected orders. The wait times are provided
in the table to the right. Complete parts (a) and (b) below....
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a
fast-food restaurant from the time an order is placed to the time
the order is received is 85.5
seconds. A manager devises a new drive-through system that he
believes will decrease wait time. As a test,he
initiates the new system at his restaurant and measures the wait
time for 10
randomly selected orders. The wait times are provided in the table
to the right. Complete parts (a) and (b) below.
109.0...
The mean waiting time at the drive-through of a fast-food restaurant from the time an order...
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order is placed to the time the order
is received is 84.3 seconds. A manager devises a new drive-through
system that he believes will decrease wait time. He initiates the
new system at his restaurant and measures the wait time for ten
randomly selected orders. The wait times are provided in the table
below. Based on the given data, is the new system effective? Use...
In a drive-thru fast food restaurant, customers arrive with an interarrival time of 6 minutes. The...
In a drive-thru fast food restaurant, customers arrive with an
interarrival time of 6 minutes. The drive-thru operates in just a
single file line so only one customer’s order is processed at once.
The drive-thru has an average service time of 4 minutes.
What is the steady-state utilization of the drive-thru? What is
the average time in system per customer? What is the probability of
there being exactly 1 customer in the queue?
we considered the mean waiting time at the drive-through of a fast-food restaurant. In addition to...
we considered the mean waiting time at the drive-through of a
fast-food restaurant. In addition to concern about the amount of
time cars spend in the drive-through, the manager is also worried
about the variability in wait times. Prior to the new drive-through
system, the standard deviation of wait times was 22.1 seconds. Use
the data in the table below to decide whether there is evidence to
suggest the standard deviation wait-time is less than 22.1 seconds.
Recall that in...
We considered the mean waiting time at the drive-through of a fast-food restaurant. In addition to...
We considered the mean waiting time at the drive-through of a
fast-food restaurant. In addition to concern about the amount of
time cars spend in the drive-through, the manager is also worried
about the variability in wait times. Prior to the new drive-through
system, the standard deviation of wait times was 18.0 seconds. Use
the data in the table below to decide whether there is evidence to
suggest the standard deviation wait-time is less than 18.0 seconds.
Recall that in...
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