(b) Compute the Durbin-Watson D statistic. Does it indicate a problem? For a series of this length, any value of D that is more than 0.64 away from 2 is statistically significant with p-value smaller than 0.01.Calculate D.D= (Round to two decimal places as needed.) Transfer Time (sec)38.4File Size (MB)Hours past 8:00 am8826.6750.422.5350.822.9561.21.627.46629.182219.1262.411.926.7242.8533.227.2743.630.872428.1744.439.3954.813.4305.218.9375.6

Given: Transfer time File size Hours past 38.4 88 0 26.6 75 0.4 22.5 35 0.8 22.9 56 1.2…

Answered: (b) Compute the Durbin-Watson D…

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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If X is a continuous random variable, what is the value of X that will be exceeded 20% of the time, if a. X is uniformly distributed with a mean of 6 and a variance of 12? b. X has a gamma distribution with a mean of 2 and a variance of 2? (just set up the equation in its simplest form) c. X is exponentially distributed with a variance of 1? d. X has a chi-squared distribution with mean of 10?
. A random sample is obtained from a population with a mean of µ = 45. After a treatment is administered to the individuals in the sample, the sample is M = 49 with a standard deviation of s = 12. For a sample size of n = 9. Compute r2 and the estimated Cohen’s d to measure the size of the treatment effect. How effective was the treatment?
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Suppose we are interested in studying a population to estimate its mean. The population is normal and has a standard deviation of o=10. We have taken a random sample of size n = 42 from the population. This is Sample 1 in the table below. (In the table, Sample 1 is written "S1", Sample 2 is written "S2", etc.) As shown in the table, the sample mean of Sample 1 is x = 74.5. Also shown are the lower and upper limits of the 75% confidence interval for the population mean using this sample, as well as the lower and upper limits of the 95% confidence interval. Suppose that the true mean of the population is u=75, which is shown on the displays for the confidence intervals. Press the "Generate Samples" button to simulate taking 19 more random samples of size n=42 from this same population. (The 75% and 95% confidence intervals for all of the samples are shown in the table and graphed.) Then complete parts (a) through (c) below the table. 75% 75% 95% 95% lower upper lower upper limit limit…
Kk.80.
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(b) Compute the Durbin-Watson D statistic. Does it indicate a problem? For a series of this length, any value of D that is more than 0.64 away from 2 is statistically significant with p-value smaller than 0.01 Calculate D. D= (Round to two decimal places as needed.)