. The arrow diagram represent the logical sequence of activities in research anddevelopment program for design and construction. the duration estimated in weeks as shownbelow on table, the estimated optimistic, most probable (most likely) and pessimisticduration.Required to find the followings:1-draw the project network2-find the expected duration and variance of each activity3-calculate the earliest and latest occurrence for each event4-calculate the variance and standard deviation of project length5-the probability that the program will be completed in 33 weeksAct.Estimated duration1-217131-62142-314262-48.3-5710194-5176-7295-8339.7-88.1732

Answered: Image /qna-images/answer/654df7b3-eecf-465c-8984-626045ca2a05.jpg

Answered: . The arrow diagram represent the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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6. Section 5.7 Number 46 parts b and c only 46. According to the College Board, scores on the Math SAT for the class of 2017 had a mean of 527 and a standard deviation of 107. Assume that they are roughly normally distributed. a. What was the interval spanned by the middle 50% of scores? b. What was the interval spanned by the middle 68% of scores? c. How high must a student score in order to be in the top 2.5% of scores?
Using a sample of 500 adults with the following variables: genhelf - variable recording general self- reported health coded 1 = very good, 2 = good, 3 = fair, 4 = poor sbp - variable recording systolic blood pressure - age - age of the respondent in years sex coded 1 = male and 2 = female hi_sbp - indicator of high blood pressure coded 1 if the respondent's sbp is 130 or higher and 0 otherwise What type of chart is MOST appropriate for the variable sbp? a/ pie chart b/ bar chart c/ histogram
5. A pressure transducer regulates a climate control system in a factory. The transducer fails according to an exponential distribution with rate one failure every five years on average. a. What is the cumulative distribution function of the time until failure? b. What is the probability that a transducer chosen at random functions for eight years without failure? irteen Reliability and Maintainability c. What is the probability that a transducer that has functioned for eight years con- tinues to function for another eight years?
Illustraiion 17.34. Mean of a distribution is 2.0. What are the probabilities corresponding to various successes 0, 1, 2,.., assuming that the Poisson distribution explains the data. If the total frequency
Answers 0.826 0.779 0. 221 0. 174
ACTIVITY 2 Directions: Answer the following question. Use Microsoft Excel as much as possible. 1. The following lists the 10 Auto Manufacturer Production (millions Toyota Motor Corp. 9.37 largest automakers in the world General Motors 8.90 Volkswagen AG Ford Motor Co. and the number of vehicles 6.19 5.96 produced by each in a recent Hyundai-Kia Automotive Group 3.96 Honda Motor Co. Ltd. 3.83 year. Compute the mean, Nissan Motor Co. 3.68 PSA/Peugeot-Citreon SA Chrysler LLC Fiat S.p.A. 3.43 median, mode , Q2, P25, P75, 2.68 2.62 standard deviation, variance, kurtosis and skewness on these data.
The data is as follows: 2 0's, 6 1's, 10 2's, 32 3's, 50 4's, 69 5's, 50 6's, 38 7's, 19 8's, 12 9's, and 4 10's.
Chapter 7: 6. The mean room and board expense per year at a four-year college is $9200. Assume the room and board expenses are normally distributed with a standard deviation of $1200. (6 points each) You randomly select one four-year college. What is the probability that their average room and board is less than $8950? b. You randomly select 50 four-year colleges. What is the probability that the mean average room and board is less than $8950?
6. True or False? Assume the below life table was constructed from following individuals who were diagnosed with slow-progressing form of prostate cancer and decided not to receive treatment of any form. The calculated survival probability for year 3, if the Kaplan-Meir approach is used to calculate the survival probability, is approximately 0.7438. Time in years Number at risk Nt Number of deaths, Dt Number of censored Ct Survival Probability 0 20 1 1 20 3 2 17 1 3 16 2 1
Define on empirical way and a statistical way to choose the best forecasting model for your time series data. Consider the following situations: 1. The data has no trend or seasonality 2. The data has trend but not seasonality 3. The data presents trend and seasonality but negligible noise 4. The data presents trend, seasonality and significant noise.
3.4.5 5. Suppose the length of time of a whale's song is normally distributed with mean 12.5 minutes and standard deviation 2.6 minutes. a. Find the probability that a whale's song will last more than ten minutes. b. Find the probability that a whale's song will last between eight and sixteen minutes. c. Find the probability that a whale's song lasts less than five minutes or longer than twenty minutes. d. Find the length of time such that only 5% of whale's songs last longer than that length of time. e. Find the length of time such that only 10% of whale's songs are shorter than that length of time.
A hospital has a main campus and three satellite locations. Management wants to reduce waiting time for ER cases. A random sample of 11 ER cases at each location was selected, and the waiting time was measured. (The table of data at the very end may be copied and pasted directly into Excel.) Complete parts (a) through (d) to determine if there is statistical evidence of a difference in the mean waiting times betweeen the four locations. Part 1 a. State the two hypotheses. Choose the correct answer below. A.H0:μ1=μ2=•••=μ4H1:Not allμjare equal (where j=1,2,...,4) B.H0:μ1=μ2=•••=μ4H1:μ1≠μ2≠•••≠μ4 C.H0:μ1=μ2=•••=μ11H1:μ1≠μ2≠•••≠μ11 D.H0:μ1=μ2=•••=μ11H1:Not allμjare equal (wherej=1,2,...,11) b. At the 0.05 level of significance, state the test statistic. (Round to two decimal places to the right of the decimal point as needed.) A.FSTAT = 0.005, from the first row of the ANOVA table B.FSTAT = 4.91, from the first row of the ANOVA table…

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