Lennie is a worker for Clean&Clean Co., a car wash company….

Lennie is a worker for Clean&Clean Co., a car wash company. It seems that the company’s business is pretty good. We observed that on average 15 customers arrive every hour. The arrival is Poisson distributed.  The average car washing time is 2 minutes per car, following an exponential distribution. What is the average service rate per hour?

Lennie is a worker for Clean&Clean Co., a car wash company….

Lennie is a worker for Clean&Clean Co., a car wash company. It seems that the company’s business is pretty good. We observed that on average 15 customers arrive every hour. The arrival is Poisson distributed.  The average car washing time is 2 minutes per car, following an exponential distribution. What is the average number of cars waiting to be washed?

The following table indicates how many meals the Center Cour…

The following table indicates how many meals the Center Court Restaurant of University A has sold each month for the past 10 month. Month Sales 1 70 2 89 3 94 4 80 5 68 6 72 7 60 8 75 9 86 10 90 What is the forecast for 11th month using Double Exponential Smoothing, with α=0.4, β=0.1?  

The following is a product structure tree for a toy called z…

The following is a product structure tree for a toy called zigzag robot (Z-robot). The manufacturer receives an order of 50 units of Z-robot that should be ready in week 10. The lead times for the components are Z (2 weeks), A (1 week), B (1 week), C (1 week), D (1 week), and E (3 weeks). None of these items has inventory on hand. What is the gross requirements for item E?