d) To test if the mean waiting time at the drive-through window at a fast food...
d) To test if the mean waiting time at the drive-through window at a fast food restaurant during rush hour differs from 10 minutes.
Hypothesis to be tested (using symbols): H0 : H1 :
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d) To test if the mean waiting time at the drive-through window
at a fast food...
1. At a fast food restaurant, the waiting time at the drive-through window has an average of...
1. At a fast food restaurant, the waiting time at the drive-through window has an average of 3 minutes, with a standard deviation of 0.8 minutes. i. What is the probability that a random sample of 64 cars will have an average waiting time of less than 3.25 minutes? ii. Did you use the CLT to do this problem? Explain.
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 86.8 seconds. A manager devises a new drive-through system that he believes will decrease wait time. He initiates the new system and measures the wait time for 10 randomly selected orders. The wait times are 88.5 78.4 78.0 75.9 85.1 82.4 95.5 86.3 74.9 72.0. (a) State the null and alternative hypotheses (b) Perform...
You are the manager of a restaurant for a fast-food franchise. Last month, the mean waiting...
You are the manager of a restaurant for a fast-food franchise. Last month, the mean waiting time at the drive-through window for branches in your geographical region, as measured from the time a customer places an order until the time the customer receives the order, was 3.6 minutes. You select a random sample of 64 orders. The sample mean waiting time is 3.82 minutes, with a sample standard deviation of0.8 minute. Complete parts (a) and (b) below. a. At the...
please help. thank u The mean waiting time at the drive-through of a fast food restaurant...
please help. thank u
The mean waiting time at the drive-through of a fast food restaurant from the time an orders placed to the time the order is received is 84 2 seconds. A manager devises a new drive through system that the believes will decrease wait time As a test the 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...
6. The mean waiting time at the drive-through of a fast-food restaurant from the time an...
6. 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 the wait time. He initiates the new system at his restaurant and measures the wait time for 10 randomly selected orders. The wait times are in the following table: 108.5 67.4 58.0 75.9 65.1 80.4 95.5 86.3 70.9 72.0...
The mean waiting time at the drive-through of a fast-food restaurant from the time the food...
The mean waiting time at the drive-through of a fast-food restaurant from the time the food is ordered to when it is received is 85 seconds. A manager devises a new system that he believes will decrease the wait time. He implements the new system and measures the wait time for 10 randomly sampled orders. They are provided below: 109 67 58 76 65 80 96 86 71 72 Assume the population is normally distributed. (a) Calculate the mean and...
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 85.2 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....
You are the manager of a restaurant for a fast-food franchise. Last month, the mean waiting...
You are the manager of a restaurant for a fast-food franchise.
Last month, the mean waiting time at the drive-through window for
branches in your geographical region, as measured from the time a
customer places an order until the time the customer receives the
order, was 3.8 minutes. You select a random sample of 81 orders.
The sample mean waiting time is 3.63 minutes, with a sample
standard deviation of 0.9 minute. Complete parts (a) and (b)
below.
fast-food franchise....
(10 pts) The mean waiting time at the drive-through of a fast-food restaurant from the time...
(10 pts) The mean waiting time at the drive-through of a fast-food restaurant from the time the food is ordered to when it is received is 85 seconds. A manager devises a new system that he believes will decrease the wait time. He implements the new and measures the wait time for 10 randomly sampled orders. They are provided below: system 109 67 58 76 65 80 96 86 71 72 Assume the population is normally distributed. (a) Calculate the...
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 85.5 seconds. A manager devises a new drive-through system that she she believes will decrease wait time. As a test, she she initiates the new system at her her restaurant and measures the wait time for 10 10 randomly selected orders. The wait times are provided in the table to the right. Complete...
please help. thank u
The mean waiting time at the drive-through of a fast food restaurant from the time an orders placed to the time the order is received is 84 2 seconds. A manager devises a new drive through system that the believes will decrease wait time As a test the 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...
6. 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 the wait time. He initiates the new system at his restaurant and measures the wait time for 10 randomly selected orders. The wait times are in the following table: 108.5 67.4 58.0 75.9 65.1 80.4 95.5 86.3 70.9 72.0...
The mean waiting time at the drive-through of a fast-food restaurant from the time the food is ordered to when it is received is 85 seconds. A manager devises a new system that he believes will decrease the wait time. He implements the new system and measures the wait time for 10 randomly sampled orders. They are provided below: 109 67 58 76 65 80 96 86 71 72 Assume the population is normally distributed. (a) Calculate the mean and...
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 85.2 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....
You are the manager of a restaurant for a fast-food franchise.
Last month, the mean waiting time at the drive-through window for
branches in your geographical region, as measured from the time a
customer places an order until the time the customer receives the
order, was 3.8 minutes. You select a random sample of 81 orders.
The sample mean waiting time is 3.63 minutes, with a sample
standard deviation of 0.9 minute. Complete parts (a) and (b)
below.
fast-food franchise....
(10 pts) The mean waiting time at the drive-through of a fast-food restaurant from the time the food is ordered to when it is received is 85 seconds. A manager devises a new system that he believes will decrease the wait time. He implements the new and measures the wait time for 10 randomly sampled orders. They are provided below: system 109 67 58 76 65 80 96 86 71 72 Assume the population is normally distributed. (a) Calculate the...
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