work, the18. What is the probability that the project will bevisccompleted in less than 44 weeks?A. 0.0227В. О.1894C. 0.9172D. 0.9773give19. What is the purpose of using Critical Path Methodin business?A. To create a formula based upon the mostlikely time and least likely time.B. To find the shortest time to complete theproject.C. To find out faults in the system.Use the scenario below to answer questions 16- 18D. A method of mapping out the plan for aThe following information has been computed forparticular activitya project.Expected completion time, C = 62 weeks20. In calculating the probability that a project will becompleted within a specified period, based on theVariance, V (C) = 81 weeksPERT analysis, which of the following is a correctassumption?16. What is the standard deviation of the project?A. The actual times are normally distributed.A. 4.4 weeksB. The estimated activity times follow aB. 7.9 weeksnormal distribution.C. 9 weeksC. The times along the critical path follows aD. 12 weeksStudent-t distribution.D. The expected completion times follow a17. If the desired completion time is 44 weeks, then thenormal distribution.standardize variable z is?А. -4.11В. -2С. -0.22D. 1.31(3)8 and m=3vity?

Given Expectation C= 62 Variance V=81. We find given requirement. ** By Bartleby policy I have to…

Answered: Use the scenario below to answer…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Number 100 part D and E
Just answer the number 7 and 8 in 4 decimaal
ex 101 FINAL EXAM (2) - Microsoft Word - Safe Mode O Search (Alt+Q) Layout References Mailings Review View Help - A A Aav A EEE E AaBbCcDc AaBbCcDc AAB6CC AABBCCC A * A I A E E- I Normal 1 No Spac. Heading 1 Heading 2 Paragraph Styles Enter your search term 6) Problem 3.) Calculate the mean, variance and standard deviation of weights (in pounds) of all U.S. presidents since 1952. 173 175 200 173 160 185 195 230 190 180 (a) Find the mean, median, mode, and standard deviation for these data (b) Give the five-number summary of weights of all U.S. Presidents since 1952. (Optional) c) Make a Box Plot using the five-number summary. D Focus investigate 耳 C 42°F Cip
Q P.15: According to a theater, about 8% of all people who buy a ticket to a performance arrive late. Find the mea and standard deviation of the number of people who are late if 300 tickets have been sold. A The mean is µ 300 · 0. 08 = 24. The standard deviation is o = v300 · 0. 08 · 0. 92 z 4. 70. В The mean is u = V300 · 0. 08 · 0. 92 2 4. 70. The standard deviation is o = 300 · 0. 08 = 24. The mean is µ 300 · 0. 08 · 0. 92 = 22. 08. The standard deviation is o = 300 · 0. 92 = 276. The mean is u = 300 · 0. 92 = 276. The standard deviation is o = 300 · 0. 08 · 0.92 = 22. 08. %3D E The mean is u 300 · 0. 08 = 24. The standard deviation is o = 300 · 0. 08 · 0. 92 = 22. 08. %3D
Question 21 Negative values of covariance indicate O a. the standard deviation is negative O b. a negative relation between the x and the y variables c. a negative variance of the y values d. a positive variance of the x values
#38
The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days and a standard deviation of 15 days. In what range would you expect to find the middle 98% of most pregnancies? [Write your answer as a complete sentence] Edit View Insert Format Tools Table B IU A ev T2v レレ 12pt v Paragraph v 1:13 PM 72°F Sunny 5/7/2022 .. P Type here to search の fo l ins prt sc end 12 delete home f4 f5 & 7 num backspace lock 3 4. 6 8. ... DI 5 %24
6.9 According to the Internal Revenue Service, income tax returns one year averaged $1,332 in refunds for taxpayers. One explanation of this figure is that taxpayers would rather have the government keep back too much money during the year than to owe it money at the end of the year. Suppose the average amount of tax at the end of a year is a refund of $1,332, with a standard deviation of $725. Assume that amounts owed or due on tax returns are normally distributed. a. What proportion of tax returns show a refund greater than $2,000? b. What proportion of the tax returns show that the taxpayer owes money to the government? c. What proportion of the tax returns show a refund between $100 and $700?
Chapter 06, Section 6.3, Problem 035 The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and 6.0 ounces. Suppose the weights of pucks produced at a factory are normally distributed with a mean of 5.79 ounces and a standard deviation of 0.14 ounces. What percentage of the pucks produced this factory cannot be used by the National Hockey League? Round your answer to two decimal places. The percentage of pucks that cannot be used is %.
A Scenario: Jimmy store sells large tins of Tom Tucker Coffee. The deli uses a periodic review system. Inventory is checked every 10 days which more orders are needed for tins. Order lead time is 3 days. Average demand is 7 tins, so average demand during the reorder period and order lead time (13) is 91 tins. Standard deviation of demand during the same 13 day period is 17 tins.1. Calculate the restocking level ( Assume the desired level is 90%)2. Suppose standard deviation of demand during the 13-day period drops to 4 tins. What happened to restocking level? Explain why?3. Draw a saw-tooth diagram. Beginning inventory level is equal to restocking level and the demand rate is a constant 7 tins per day. What is the safety stock level? What is the average inventory level?
Number 103 part D and E
9.17

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