(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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Ten percent of Americans are allergic to ragweed. Suppose a random sample of 200 people is selected. If possible, use the normal approximation to find the probability at least 10 will be allergic to ragweed. Use your mean and standard deviation calculated previously and rounded to two decimal places (questions 7 & 8) to calculate z-scores whenever needed. If it is not possible to use the normal approximation to the binomial, enter NA as your answer to this question. (If numerical, round to 4 decimal places)
. 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.
..3. Find the probability that the value of an item drawn at random from a normal distribution with mean 20 and standard deviation 10 will be between t/ (a) 10 and 15 (b) -5 and 10, and (c) 15 and 25. The relevant extract of the Area Table (under the normal curve is iven below: 0.5 1.0 1.5 2.0 2.5 0.1915 0.3413 0.4332 0.4772 0.4938
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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.)