3. Suppose that a data warehouse consists of the three dimensions time, doctor, and patient, and the two measures count and charge, where charge is the fee that a doctor charges a patient for a visit. (a) Enumerate three classes of schemas that are popularly used for modeling data warehouses.
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Firsto sub-oarto?
![3. Suppose that a data warehouse consists of the three dimensions time, doctor, and patient, and the two
measures count and charge, where charge is the fee that a doctor charges a patient for a visit.
(a) Enumerate three classes of schemas that are popularly used for modeling data warehouses.
(b) Draw a schema diagram for the above data warehouse using one of the schema classes listed in (a).
(c) Starting with the base cuboid [day, doctor, patient], what specific OLAP operations should be
performed in order to list the total fee collected by each doctor in 2004?
(d) To obtain the same list, write an SQL query assuming the data is stored in a relational database
with the schema fee (day, month, year, doctor, hospital, patient, count, charge).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F566bfc89-4299-40f7-a31d-de4820ac9985%2F85d61fca-d55d-4963-8aad-4a662b2a00e4%2Fja9oqhp_processed.jpeg&w=3840&q=75)
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- Companies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. (a) Develop a scatter diagram with the number of cars in service as the independent variable. (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? (c) Use the least squares method to develop the estimated regression equation that can be used to predict annual revenue (in $ millions) given the number of cars in service (in 1,000s). (Round your numerical values to three decimal places.) (d) For every additional car placed in service, estimate how much annual revenue will change (in dollars). (Round your answer to the nearest integer.) Annual revenue…FORMULATE A PROBLEM OUT OF THIS DATA. THANK YOUPlease explain each step to find the production schedule for technology matrix and demand vector
- How many units of Product 2 should be produced to achieve the optimum solution? * O 12.14 14.12 O 20 O 124) Inventory control: Lenhen Vinters imports a certain brand of beer. The demand for beer over a year is 80,000 cases/year. The cost to ordering a shipment of beer is $50, the cost of storing each case of beer for a year is $2.00, and each case of beer costs them $35 to purchase. (Assume the storage cost is based on the average number in storage at any time in the year.) Find the following. a) Give the simplified function that represents the total inventory cost (circle this). Be sure to state what the variable x represents. CLEARLY state the understood domain of the function that you are using. X is Understood Domain is b) How many cases of imported beer should they order in each shipment and how many orders need to be placed over the year to minimize the total inventory cost? Use calculus to solve this problem. You must verify your answer yields a minimum cost based on your domain. SHOW all work and put your answers in the spaces provided. Number of cases per shipment Number of…Q2. Consider the following situation: A farmer owns a farm which produces watermelon, cucumber, and corn,. There are 12 acres of land available for cultivation. Each crop which is planted has certain requirements for labor and capital. These data along with the net profit figures are given in the following table: Сapital (J.D.) 36 Net profit (J.D.) Labor (hours) 6. Watermelon (per acre) Cucumber (per acre) Corn (per acre) 40 24 30 2 18 20 The farmer has available 360 JD for capital and knows that there are 48 hours available for working these crops. How much of each crop should be planted to maximize profit? Let x1 : number of acres planted Watermelon, x2: number of acres planted Cucumber, and x3: number of acres planted Corn. We set the mathematical model with the objective function Max. z = 40x1+30 x2 + 20 x3. After ad slack variables x4, x5, and x6 ,and solving it by the simplex algorithm, we obtained the following final tableau: X1 X2 X3 X4 X5 X6 X1 1 1 1/4 -1/2 6. X5 -12 -9/2 1 -9…
- A farmer has recently acquired a 110 hectares piece of land. He has decided to grow Wheat and barley on that land. Due to the quality of the sun and the region’s excellent climate, the entire production of Wheat and Barley can be sold. He wants to know how to plant each variety in the 110 hectares, given the costs, net profits, and labor requirements according to the data shown below: Variety Cost (Price/Hec) Net Profit (Price/Hec) Man-days/Hec Wheat 100 50 10 Barley 200 120 30 The farmer has a budget of US$10,000 and an availability of 1,200 man-days during the planning horizon. Find the optimal solution and the optimal value.A quality control engineer studied the relationship between years of experience as a system control engineer and the capacity of the engineer to complete within a given time a complex control design including the debugging of all computer programs and control devices. A group of 25 engineers having widely differing amounts of experience (measured in months of experience) was given the same control design project. The results of the study are given in the following table with y 5 1 if the project was successfully completed in the allocated time and y 5 0 if the project was not successfully completed. a. Determine whether experience is associated with the probability of completing the task. b. Compute the probability of successfully completing the task for an engineer havingA manufacturing company has three processing lines. Each processing line combines various raw materials to produce the same output, Y. One of the processing lines can combine units of input (X) to produce units of output (Y) such that there is a linear relationship between X and Y. The Chief Executive Officer wants the output model to be estimated for this processing line. Given the values of X and Y (in thousands of units) in the table below, and as the Director of Data Management, you are to: x 5 7 2 8 4 8 12 6 14 8 Determine the extent to which output changes as the input change and interpret your result. Find the intercept of the output model and interpret it. Write down the equation of the line of best fit for output. Determine the value of the extent of relationship between input (X) and output (Y), and interpret your result.
- A manufacturing company has three processing lines. Each processing line combines various raw materials to produce the same output, Y. One of the processing lines can combine units of input (X) to produce units of output (Y) such that there is a linear relationship between X and Y. The Chief Executive Officer wants the output model to be estimated for this processing line. Given the values of X and Y (in thousands of units) in the table below, and as the Director of Data Management, you are to: x 5 7 2 8 4 8 12 6 14 8 Determine the extent to which output changes as the input change and interpret your result. Find the intercept of the output model and interpret it. Write down the equation of the line of best fit for output. Determine the value of the extent of relationship between input (X) and output (Y), and interpret your result. Find the value of the coefficient of determination and interpret your result.C (gross cost of UPS Inc. in billions of $) and R (gross revenue of UPS Inc. in billions of $) O E (years since 2010) and P (gross profit of UPS Inc. in billions of $) (b) Find an equation for a model of these data. (Use the first and last values in the table to calculate your equation. Round the slope and the vertical intercept to one decimal place. Note th -Select- () Give a reasonable domain and range for this model. domain O (-10, 10] O [11, 15] O -0, 0) O [0, 20] O [-2, 8] range [41.9, 47.8] O [-50, 50] [37.3, 52.3] [0, 100] O (-o, co) (d) What is the slope of your model? Explain its meaning in this situation. (Round your slope to one decimal place. Do not include units in your answer.) The slope is This means that the gross profit for UPS Inc. --Select--- by about that value in billions of dollars each year. (e) Estimate the gross profit for UPS in 2019. (Round your answer to the nearest tenth of a billion dollars. Include units in your answer. More information.) In 2019, the…Robots for you, Inc. manufactures robots that help with household tasks. Their fixed costs associated with production of their robot model CJU589 amount to $5192 per month. Labor and materials for each robot model CJU589 are $46 per unit, and the company sells the robot model CJU589 to resellers for $68 per unit. Let a denote the number of units of robot model CJU589 produced and sold by Robots for you, Inc. on a given month. Determine: a) the corresponding monthly total costs C(x) = b) the corresponding monthly total revenue R(x) = = c) the corresponding monthly total profit P(x) = d) the number of units of robot model CJU589 that Robots for you, Inc. needs to produce and sell in order to make a profit: $ Submit your final answers into each answer box and upload a file with your explanation using the "Add Work" box.
