Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up ofsample values drawn from a population.1.0 6.82.0 9.63.0 3.54.0 9.05.0 5.06.0 2.21.0 2.82.0 4.33.0 3.14.0 4.85.0 4.36.0 6.57.0 5.87.0 6.08.0 10.29.0 5.110.0 8.1 Figure 18.0 7.69.0 6.610.0 7.9 Fioure 21.0 7.62.0 8.83.0 6.94.0 5.41.0 8.12.0 6.83.0 7.94,0 6.35.0 8.55.0 6.86.0 4.46.0 5.17.0 4.58.0 7.29.0 5.810.0 4.2 Figure 37.0 4.98.0 3.59.0 4.110.0 32 Figure 4Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation coefficient. The same responsemay be the correct answer for more than one question.(a) For which data set is the sample correlation coefficient r closest to -1??(Choose one)(b) For which data set is the sample correlation coefficient r equal to 1?(Choase one)(c) For which data set is the sample correlation coefficient r closest to 0?(Choose one)(d) Which data set indicates the strongest positive linear relationship between itstwo variables?(Choose one)

Answered: Image /qna-images/answer/2506812f-108b-444c-9591-8995ca901034.jpg

Answered: Below are four bivariate data sets and…

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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Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. х у 1.0 | 1.0 2.0 2.0 u v 1.0 3.8 11 T 11– 10 10- 2.0 6.1 9. 8 3.0 3.0 4.0 | 4.0 3.0 7.0 7+ 7+ 4.0 4.5 6+ 5+ 5+ 5.0 5.0 5.0 5.0 4 6.0 | 6.0 6.0 8.2 + + + + + + 7.0 |7.0 7.0 5.7 8.0 | 8.0 8.0 6.5 10 i 10 11 9.0 9.0 9.0 8.7 |10.0 10.0 Figure 1 10.0 7.4 Figure 2 w t 1.0 8.1 m 11- 10+ 9- 11- 1.0 4.4 10- x X x x 2.0 6.6 2.0 6.2 9- 8+ X 8. | 3.0 7.9 3.0 8.2 4.0 5.6 6+ 4.0 9.4 6- 5+ 5.0 7.5 5.0 9.7 4 4 - 6.0 4.5 6.0 9.5 3 2 7.0 5.0 7.0 9.5 2- 8.0 3.7 8.0 8.3 10 i 10 11 9.0 4.4 9.0 6.0 |10.0 2.8 Figure 3 10.0 4.2 Figure 4 Answer the following questions. The same response may be the correct answer for more than one question. (a) In which data set is there evidence of a strong nonlinear relationship between the two variables? (Choose one) the x, y data set (b) the u, v data set the w, t data set…
The picture for the dataset for AIDS cases below include the numbers of cases of AIDS in Australia by date of diagnosis for successive 3-month periods from 1984 to 1988. (Data from National Centre for HIV Epidemiology and Clinical Research, 1994.) Please answer all parts a, b, and c of this question. Show all work. a) Perform an EDA to inspect, understand and describe the information collected in this dataset. Use appropriate summary statistics and plots to present your results from the EDA. b) What is your conclusion about AIDS incidence in Australia during this time period? c) Suggest two probability distributions which could be good candidates for fitting the number of cases in this study. Which probability distribution would you prefer to fit the data in this particular example? Why?
The stated goal of a chain of service stores is to provide a lube and oil change for anyone's automobile in 15 minutes. The manager at one store thinks that there is a growing disparity among his workers in the time it takes to lube and change the oil of an automobile. To monitor this, the manager has selected a sample of 20 days and has recorded the time it took five randomly selected employees to service an automobile. The data are found below. Complete parts a through d Click the icon to view the data. a. The manager noticed that the longest time it took to service a car was 25.73 minutes. Suppose the distribution of fimes to service a car was normal, with a mean of 15. Without analyzing the sample data, use your knowledge of a normal distribution to give the manager an estimate for the population standard deviation for the time it takes to service a car. The standard deviation is minutes. (Round to two decimal places as needed.) b. Use the data to construct an x- and an R-chart.…
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 122 137 158 114 156 143 99 112 115 152 Diastolic: 61 51 76 73 55 58 74 60 87 59 Find the means. The mean for systolic is mm Hg and the mean for diastolic is mm Hg. (Type integers or decimals rounded to one decimal place as needed.) ***
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 147 137 146 148 105 102 129 122 95 99 Diastolic: 86 79 68 60 77 82 89 84 72 58
Part a. Find the data set's first, second, and third quartiles. Part b. Draw a box and whisker plot that represents the data set
Compute the RMSE, ME, MAD, MPE, and MAPE using the following dataset. Negative values should be indicated with a minus sign. Round answers to two decimal places. Observations Actual Value Predicted Value 1 227 192 160 206 3 83 210 4 121 259 193 142 263 296 7 202 142 8 126 235 143 196 10 196 24 • RMSE: • ME: • MAD: . MPЕ: % . МАРЕ:
Below are four bivariate data sets and the scatter plot for each. (Note that each scatter plot is displayed on the same scale.) Each data set is made up of sample values drawn from a population. y u V 1.0 7.5 11 1.0 6.7 11 10 - 10- 2.0 8.6 2.0 9.0 9- 8- 8. 3.0 6.9 3.0 4.0 7- 4.0 5.4 4.0 9.0 5 - 5.0 8.1 5.0 4.7 6.0 5.0 6.0 1.7 3 7.0 4.9 1- 7.0 6.0 8.0 6.8 8. 8.0 9.7 10 1 6 10 8 9 9.0 6.0 9.0 4.9 Figure 1 Figure 2 10.0 3.8 10.0 7.9 w n 1.0 8.0 11 1.0 3.3 11 10- 10- 2.0 7.2 2.0 3.9 9 - 9- 3.0 7.7 8 - 3.0 3.1 8 7- 7 4.0 6.2 6+ 4.0 4.5 6. 5- 5 5.0 6.9 4 1 5.0 4.5 4 6.0 4.5 3 6.0 7.1 3 2 7.0 4.9 1. 7.0 6.0 8.0 3.3 8.0 7.7 2 3 6 7 8 9 10 11 2 4 5 6 7 8 9 10 11 9.0 4.4 9.0 6.6 Figure 3 Figure 4 10.0 3.1 10.0 8.1 Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation coefficient. The same response may be the correct answer for more than one question. 1. For which data set is the sample correlation coefficient r closest to 1?…
Make a graphical display of the following data sets, choosing nay type of display that you feel is appropriate. Explain your choice of display and discuss any interesting features in the data. The following table shows the perscentages of American men and women who had never been married in selected years since 1960. Percentages of Adults Who Never Married Year Women Men 1960 19.0% 25.3% 1980 22.5% 29.6% 2000 21.5% 31.3% 2015 28.9% 34.8%
Please help by showing all workings and explanations
A certain statistics instructor participates in triathlons. The accompanying table lists times (in minutes and seconds) he recorded while riding a bicycle for five laps through each mile of a 3-mile loop. Use a 0.05 significance level to test the claim that it takes the same time to ride each of the miles. Does one of the miles appear to have a hill? LOADING... Click the icon to view the data table of the riding times. Question content area bottom Part 1 Determine the null and alternative hypotheses. H0: ▼ mu 1 greater than mu 2 greater than mu 3μ1>μ2>μ3 mu 1 not equals mu 2 not equals mu 3μ1≠μ2≠μ3 Exactly two of the population means are different from each other.Exactly two of the population means are different from each other. At least one of the three population means is different from the others.At least one of the three population means is different from the others. mu 1 equals mu 2 equals mu 3μ1=μ2=μ3 H1: ▼ mu 1 greater than mu 2…
A factory owner has taken a sample (n = 20) of workers to see how many broken widgets each employee produces per day. For the following data, construct a frequency distribution table. Include columns for observed value (Xcat), frequency, proportion, and percent. 2 1 0 2 1 0 7 3 8 0 1 5 0 0 9 2 0 1 3 0

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