Numerade

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9. Four buses carrying 198 students from the same school arrive at a football stadium. The buses carry, respectively 90, 33, 25, and 50 students. One of the students is randomly selected. Let X denote the number of students who were on the bus carrying the randomly selected student. One of the four bus drivers is also randomly selected. Let Y denote the number of students on her bus. a) Which of E[X] or E[Y] do you think is larger? Why? b) Compute E[X] and E[Y]. c) Find Var(X) and Var(Y).

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A medical researcher surveyed 11 hospitals and found that the standard deviation for the cost of removing a person’s gall bladder was $53. Assume the variable is normally distributed. Find the 99% confidence interval of the population variance and standard deviation of cost of removing the gall bladder. Please include a drawing of the plot

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ay Fill in the following table. Product Price Quantity Demanded Total Marginal Marginal Total Total Average Revenue Revenue Cost Cost Profit Total Cost 54 0 - 60 - - 51 1 51 51 105 105 54 105 48 2 96 45 165 140 44 70 45 3 135 39 305 171 -36 57 42 4 168 33 476 204 -36 51 39 5 195 27 680 245 -50 49 36 6 216 21 925 300 -84 50 b) Plot the marginal revenue and demand curves, as well as the marginal cost curve on the graph below. Note: You must plot all points for the marginal cost curve. • Marginal Cost (1,69) 60 MR of ds 50 50 Cost ($) 460 40 30 20 (0,10) Reset 2 Units of Output +6 5 c) Plot the average total cost curve on the graph below (770)

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2. Case Study 1: International Case Study - The selection of IT Platform: Enterprise System Implementation in the NZ Health Board (Copy of the case under - Assignment on Bb). Short summary submission of the case study highlighting the main points and answering questions 1 - 4, at the end of the case study. 1. Describe the NZ Health Board and the environment in which it operates. Why did it need a new enterprise system? 2. Discuss the pros and cons of selecting Oracle 11i ERP applications and Windows NT for the operating system for the Health Board's new enterprise system. 3. Why were there performance problems with the new system? What management, technology and organizational factors were involved? 4. What should James Keen do to solve these problems so that the new enterprise system is successful?

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Question 4 (20 Marks) (a) The CIP process was enabled by the development of effective elution techniques which allowed reuse of the activated carbon. Describe the chemical basis for elution methods used to recover gold from activated carbon and the effects of the four key parameters on the adsorption and desorption processes. [8 marks] (b) Describe the process of reactivation of activated carbon and list the main process parameters and conditions that can affect the activity of the carbon. [4 marks] (c) The purification of zinc electrolyte by zinc cementation is essential to the production zinc metal by electrowinning. Briefly describe the zinc cementation process using relevant block flow diagrams and explanation of the effects of key process parameters. [8 marks]

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Classification of Bones 2. The four major anatomical classifications of bones are long, short, flat, and irregular. Which category has the least amount of spongy bone relative to its total volume?

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Design a standard TM over \{a, b\} for accepting L = \{b$^n$aw: n ? 0, |w| = 2k+1, k ? 0, w ? \{a,b\}$^+$\}.

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2- The following transformer is supplying the illustrated load. The phase A of the primary of the transformer is short circuited. What happens to the voltages on the secondary? Compare the currents on the primary without the short circuit and with the short circuit.

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What are the strengths and weaknesses as revealed by the ratio analysis. Explain why it's good or why it's bad. Current ratio = 1.98 Times Days sales outstanding = 76.29 Days Debt ratio = 61.90%

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Suppose the demand curve is estimated to be: P = 10 - Q. What Price (P) will the firm charge if it wants to maximize REVENUE? a) 5 b) 10 c) 15 d) 20 can someone help with this question

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paula s.