The daily demand for coffee in a coffee shop approximately has a normal distribution with mean...
The daily demand for coffee in a coffee shop approximately has a
normal distribution
with mean 220 cups and standard deviation 40. Assuming that the
demands in different days are
independent, what is the probability that the average demand in the
next five days
exceeds 240? ( Hint: Sum of five independent normal variables have
also a normal distribution N(220, 40^2 /5), standard
deviation=sqrt(40^2 /5). Use pnorm )
Homework Answers
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The daily demand for coffee in a coffee shop approximately has a
normal distribution
with mean...
The probability distribution of customers that walk into a coffee shop on any given day of...
The probability distribution of customers that walk into a coffee shop on any given day of the week is described by a Normal distribution with mean equal to 100 and standard deviation equal to 20. What is the probability that no more than 80 customers walk into the coffee shop next Monday? Approximately 16% Approximately 50% Approximately 84% Approximately 95%
A random sample of 90 days at a coffee shop produces a mean daily sales of...
A random sample of 90 days at a coffee shop produces a mean daily sales of $1200. The standard deviation of the population of daily sales is $210. What is the 99% confidence interval for the mean of the population of daily sales? Multiple Choice 22-40 $1200 : $6 O $1200 + $5 $1200 : $57 < Prev 10 of 13 181 Next >
1. If Y has a normal distribution with mean 116 and standard deviation 16, find P(Y...
1. If Y has a normal distribution with mean 116 and standard
deviation 16, find P(Y < 87). Enter your answer as a decimal,
not a percent. For example, if the answer is 0.3161, enter 0.3161,
NOT 31.61%.
2.
It takes two days for
a coffee shop to receive a shipment of milk from its supplier (this
time is called "lead time" in operations management). During those
three days, milk demand, Y, follows a normal distribution
with a mean of...
At a certain coffee shop, all the customers buy a cup of coffee and some also...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 320 cups and a standard deviation of 24 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
Survival Analys.. At a certain coffee shop, all the customers buy a cup of coffee and...
Survival Analys.. At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut The shop owner believes that the number of cups he sells each day is normal distributed with a mean of 330 cups and a standard deviation of 23 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 180 doughnuts and a...
At a certain coffee shop, all the customers buy a cup of coffee and some also...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 310cups and a standard deviation of 21cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 180 doughnuts and a standard deviation of 11....
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes t...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 340 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
Suppose the daily demand of a product follows a normal distribution with the mean of 50...
Suppose the daily demand of a product follows a normal distribution with the mean of 50 units and the standard deviation of 10 units. Lead time is 9 days. The ordering cost is $400 per order, and the inventory holding cost is $20 per unit per year. A cycle service level (probability of no stockout) of 95% is required. Using the fixed order quantity model, what is the reorder point? 500 450 O 720 630 MRP is a technique designed...
7. A shop has a demand for water is approximated by a normal distribution with a...
7. A shop has a demand for water is approximated by a normal distribution with a mean of 31 gallons per week and a standard deviation of 4 gallons per week. The manager desires a service level of 90 percent. The lead time is three days, and the shop opens seven days a week. (9 marks) a. If an ROP model is used, what ROP would be consistent with the desired service level? b. If a fixed-interval model is used,...
suppose a retailer has two markets, 1 and 2. demand 1 follows normal distribution with mean...
suppose a retailer has two markets, 1 and 2. demand 1 follows normal distribution with mean 100 and standard deviation 12.4. demand 2 follows normal distribution with mean 110 and standard deviation 16.7. the retailer needs to know the mean and standard deviation of the difference between the two demands. please describe the conceptual analysis process to find out these two parameters by using simulation
The probability distribution of customers that walk into a coffee shop on any given day of the week is described by a Normal distribution with mean equal to 100 and standard deviation equal to 20. What is the probability that no more than 80 customers walk into the coffee shop next Monday? Approximately 16% Approximately 50% Approximately 84% Approximately 95%
A random sample of 90 days at a coffee shop produces a mean daily sales of $1200. The standard deviation of the population of daily sales is $210. What is the 99% confidence interval for the mean of the population of daily sales? Multiple Choice 22-40 $1200 : $6 O $1200 + $5 $1200 : $57 < Prev 10 of 13 181 Next >
1. If Y has a normal distribution with mean 116 and standard
deviation 16, find P(Y < 87). Enter your answer as a decimal,
not a percent. For example, if the answer is 0.3161, enter 0.3161,
NOT 31.61%.
2.
It takes two days for
a coffee shop to receive a shipment of milk from its supplier (this
time is called "lead time" in operations management). During those
three days, milk demand, Y, follows a normal distribution
with a mean of...
Survival Analys.. At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut The shop owner believes that the number of cups he sells each day is normal distributed with a mean of 330 cups and a standard deviation of 23 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 180 doughnuts and a...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 340 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
Suppose the daily demand of a product follows a normal distribution with the mean of 50 units and the standard deviation of 10 units. Lead time is 9 days. The ordering cost is $400 per order, and the inventory holding cost is $20 per unit per year. A cycle service level (probability of no stockout) of 95% is required. Using the fixed order quantity model, what is the reorder point? 500 450 O 720 630 MRP is a technique designed...
7. A shop has a demand for water is approximated by a normal distribution with a mean of 31 gallons per week and a standard deviation of 4 gallons per week. The manager desires a service level of 90 percent. The lead time is three days, and the shop opens seven days a week. (9 marks) a. If an ROP model is used, what ROP would be consistent with the desired service level? b. If a fixed-interval model is used,...
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