(b) compute an estimate of x(1) for the initial-value problem dx 1+x x(0) = -2 dt sin (t+1)'
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- Determine the upper-tail critical value tα/2 in each of the following circumstances.To this point, the work of days missed per month by workers at a large corporation has average 2.25. A new flexible workday arrangement has been introduced and it is hoped that by introducing this "flex time" that the average workdays miss per month will be reduced. Let alpha=.05 A) defined the appropriate parameter for this problem and then set up the appropriate Null and alternative hypothesis a. The average number of work days missed by all workers at a large corporation. Ho: x bar=2.25; Ha: x bar < 2.25 b. The average number of work days missed by all workers at a large corporation Ho: mu = 2.25; Ha: mu < 2.25 c. The number of work days missed by the workers d. The average number of workdays mess by the 20 workers at a large corporation. Ho: mu =2.25; Ha: mu. 2.25In an effort to make the distribution of income more nearly equal, the government of a country passes a tax law that changes the Lorenz curve from y = 0.98x2.1for one year to y = 0.32x2 + 0.68x for the next year. Find the Gini coefficient of income for both years. (Round your answers to three decimal places.) after before
- For the given initial value problem determine the largest possible interval of validity y' = √y-t2, y(0)=1To this point, the work of days missed per month by workers at a large corporation has average 2.25. A new flexible workday arrangement has been introduced and it is hoped that by introducing this "flex time" that the average workdays miss per month will be reduced. Let alpha=.05 A) Define the appropriate parameter for this problem and then set up the appropriate Null and alternative hypothesis a. The average number of work days missed by all the workers at a large corporation. Ho: x bar= 2.25; Ha: x bar < 2.25 b. the Average number of work days missed by all workers at a large corporation Ho: mu =2.25; Ha: mu < 2.25 c. Number of workdays mess by the workers d. The average number of workdays mess by the 20 workers at a large corporation Ho: mu =2.25 ; Ha: mu> 2.25 B) Flex time is tried out with a sample of 20 workers. The average number of days missed in the next month is 1.83 with a standard deviation of 0.71. Make any necessary assumptions and use the data to (a) calculate…Consider the following initial-value problem.
- Suppose that Yt follows a stationary AR(1) model with β0 = 0 and β1 = 0.5.If Yt = 10, what is your forecast of Yt+2 (that is, what is Yt+2|t)? What isYt+h|t for h = 20? Does this forecast for h = 20 seem reasonable to you?we investigate if a period of time feels longer or shorter when people are bored compacted to when they are not bored. using independent samples, we obtain these estimates of the time period (in minutes) sample 1 (bored) xbar= 14.5 s2x= 10.22 n= 28 sample 2(not bored) xbar=9.0 s2x=14.6 n=34 (a) what are Ho and Ha? (b) compute t-obt (c) with alpha =.05, what is t-crit?Solve An article in the ASCE Journal of Energy Engineering (1999, Vol. 125, pp.59-75) describes a study of the thermal inertia properties of autoclaved aerated concrete used as a building material. Five samples of the material were tested in a structure, and the average interior temperatures (°C) reported were as follows: 23.01, 22.22, 22.04, 22.62, and 22.59. Test that the average interior temperature is equal to 22.5°C using alpha (a) = 0.05. 1.)This problem is a test on what population parameter? a.Variance/ Standard Deviation b.Mean c.Population Proportion d.None of the above 2.)What is the null and alternative 3 points hypothesis? a.Ho / (theta = 22.5) , Ha: (0 # 22.5) b.Ho / (theta > 22.5) , Ha: (0 # 22.5) c.Ho / (theta < 22.5) , Ha: (theta >= 22.5) d.None of the above 3.)What are the Significance level 3 points and type of test? alpha = 0.05 two-tailed alpha = 0.95 two-tailed alpha = 0.95 one-tailed None of the above 4.)What standardized test statistic will…
- Use Euler's Method to approximate a y(x) solution to the initial value problem [image] at points: x0 = 0 x1 = 0.5 x2 = 1Find an explicit solution of the given initial value problem using separation of variables.In two tail testing for Alpha=0.01 critical values for Z are. Select one: A. Accept Ho B. Reject Ho C. Accept H1 D. No of these