Waiting line management: unit 11. The waiting line is a list of customers who remains waiting for getting certain goods or services from service center. Understanding waiting lines or queues and learning how to manage them is one of the most important areas in operation management. In organizations or in personal life‚ there are examples of processes which generates waiting lines or queues. Such waiting lines occur because the current services facility is insufficient to provide service at that
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Performance of Safety Incidents Statistical Analysis of Safety Incident Rates Table of Contents Introduction 3 Part I. Graphical Descriptive Statistics 3 Part II. Binomial Probability Distribution 4 Part III. Inferential Statistics 5 Part IV. One Sample Hypothesis T-test 5 Part V. Two Sample Hypothesis T-test 6 Part VI. Paired (matched) Observation – Two Populations Hypothesis 6 Part VII. Linear Regression and Correlation Study 7 Part VIII. ANOVA – One-Way Test of Variance 7 Part
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standardized Z value for P(Delivery Time>29) can be calculated as: (29-25.9) / 4.08 = 0.76 P(Z>29) = 0.5 0.2764 = 0.2236 = %22 The probability of delivery time being more than 29 minutes is higher than the targeted probability of 5 percent. Further Recommendations for Improvement In order to catch up the targeted probability of exceeding 29 minutes‚ there are two things that Mr. Scapelli can work on. First‚ he can take actions to decrease the expected time of the total delivery
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DUNDALK INSTITUTE OF TECHNOLOGY | | | | | Bachelor of Science in Computing in Applications & Support - Semester 3 | Bachelor of Science in Computing in Networking & Support - Semester 3 | Bachelor of Science in Computing in Software Development - Semester 3 | | | Data Analysis for Computing | | Christmas 2010 | | | | | | | | | | | Dr. Fiona Lawless | | | | | | | Answer any FOUR questions | All questions carry
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course. The probability of not passing if the student does not do the home work is 90%. What is the probability of a student not doing homework or passing? A. .32 B. .52 C. .94 D. .92 E. .38 Answer: D 2. Suppose that for a certain football game the probability that the home team will be ahead at half-time is 0.60 and the probability that the home team will be ahead at half- time as well as at the final gun is 0.45. What is the probability that the home
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expected time versus the first three options above. With the 10.38% probability of the project’s ability to be finished in 40 weeks‚ it is highly recommended to allow at least another two weeks to allow the project to be completed with fewer errors. However‚ if it is not feasible to allow this extra time for the expansion the following two clauses below will further define the possibilities available to increase the probability of earlier completion and the additional costs it would take to undergo
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receives the following dollar returns a stock investment of $25: $1.00 of dividends Share price rise of $2.00 Calculate the investor’s total return. 3. Below are the probabilities for the economy’s five possible states next year‚ with the corresponding returns on the market and on Trebli‚ Inc.‚ stock Economic Condition Probability Market Return Trebli Return Rapid expansion 0.12 0.23 0.12 Moderate expansion 0.40 0.18 0.09 No growth 0.25 0.15 0.05 Moderate contraction 0.15 0.09
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16 players? 3. State multiplicative theorem of probability for dependent events. 4. An aptitude test with 4 options. If a student marks the options of the questions randomly and independently‚ then find the probability of being correct to 4 questions. 5. A can solve 75% questions in a book and B can solve 60% questions in that book. Find the probability that randomly selected questions is solved by them? 6. What is the probability of getting at least 2 heads when 3 coins are tossed
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Statistics is the study of the collection‚ organization‚ analysis‚ interpretation and presentation of data. It deals with all aspects of data including the planning of data collection in terms of the design of surveys and experiments. Descriptive statistics is the discipline of quantitatively describing the main features of a collection of information‚ or the quantitative description itself. Descriptive statistics are distinguished from inferential statistics (or inductive statistics)‚ in that
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Q1 In a test given to 500 students‚ the average marks was 56 and the standard deviation was 20. Find (i) the number of students exceeding a score of 60. (ii) the number of students having marks between 50 and 70. (iii) the value of marks exceeded by the top 100 students. Answer-------- (i) number of students exceeding a score of 60=210 (ii) The number of students having marks between 50 and 70=188 (iii) The value of marks exceeded by the top 100 students=73 Q2. Following
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