A wholesaler has recently developed a computerized sales invoicing system. Prior to implementing this system, a manual system wasused. The distribution of the number of errors per invoice for the manual system is as follows:Errors per InvoicePercentage of InvoicesErrors per InvoiceNumber of Invoicespi0.850.090.040.010.01Ei425After implementation of the computerized system, a random sample of 500 invoices gives the following error distribution:More Than 33452055Chi-SquareEach expected value isfi4721153Do not rejectReject085%847211119%(f E)^2/E5.197625.68896.0500.0000.880037.736502924%31%35More Than 31%(a) Show that it is appropriate to carry out a chi-square test using these data.HO. Conclude systemsp-value 0.0000001096(b) Use the Excel output shown above to determine whether the error percentages for the computerized system differ from those forthe manual system at the .05 level of significance. What do you conclude?different.

Answered: Image /qna-images/answer/3c741eb3-bf55-45b7-859c-34b56615b97c.jpg

Answered: sed. The distribution of the number of…

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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llustration 11.11. Compute quartile deviation and coefficient of skewness from the following values. Median=18.8 centimetres Q1=14.6 centimetres Q3 = 25.2 centimetres %3D
b.
The following data set are four replicas for the measurements of the concentration in Molarity of NaCl in Human Serum (0.161, 0.163, 0.165, and 0.169) calculate: The arithmetic mean or sample mean The Median The sample standard deviation The range or spread Conduct the t-student’s test with 95% confidence
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. The western United States has a number of four-lane interstate highways that cut through long tracts of wilderness. To prevent car accidents with wild animals, the highways are bordered on both sides with 12-foot-high woven wire fences. Although the fences prevent accidents, they also disturb the winter migration pattern of many animals. To compensate for this disturbance, the highways have frequent wilderness underpasses designed for exclusive use by deer, elk, and other animals. In Colorado, there is a large group of deer that spend their summer months in a region on one side of a highway and survive the winter months in a lower region on the other side. To…
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. The western United States has a number of four-lane interstate highways that cut through long tracts of wilderness. To prevent car accidents with wild animals, the highways are bordered on both sides with 12-foot-high woven wire fences. Although the fences prevent accidents, they also disturb the winter migration pattern of many animals. To compensate for this disturbance, the highways have frequent wilderness underpasses designed for exclusive use by deer, elk, and other animals. In Colorado, there is a large group of deer that spend their summer months in a region on one side of a highway and survive the winter months in a lower region on the other side. To…
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. The western United States has a number of four-lane interstate highways that cut through long tracts of wilderness. To prevent car accidents with wild animals, the highways are bordered on both sides with 12-foot-high woven wire fences. Although the fences prevent accidents, they also disturb the winter migration pattern of many animals. To compensate for this disturbance, the highways have frequent wilderness underpasses designed for exclusive use by deer, elk, and other animals. In Colorado, there is a large group of deer that spend their summer months in a region on one side of a highway and survive the winter months in a lower region on the other side.…
3.) A population has a mean of 300 and a variance of 80. If we get 160 samples from this population, what wili be the mean and standard deviation of the sampling distribution of sample mean? A.) Hg = 300 and og =0.53 B.) µg = 300 and og =0.71 C.) µg = 300 and og =6.32 D.) µg = 300 and og =80 %3D %3D
D, E, F only
6a.) Draw the graphs. Round your final answers up to 6 decimal places, if applicable. Give the correct units.
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer.In the following data pairs, A represents birth rate and B represents death rate per 1000 resident population. The data are paired by counties in the Midwest. A random sample of 16 counties gave the following information. A: 12.5 13.2 12.6 12.1 11.4 11.1 14.2 15.1 B: 9.6 14.3 10.7 14.2 13.2 12.9 10.9 10.0 A: 12.5 12.3 13.1 15.8 10.3 12.7 11.1 15.7 B: 14.1 13.6 9.1 10.2 17.9 11.8 7.0 9.2
Solve for C) answer b was wrong
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