«8. Calculate the coefficient of correlation between X and Y from the followingđata ana calculate probable error. Assume 69 and 112 as the mean value for X and Yrespectively.X :7889996059796861Y :125137156112107136123108-------

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Answered: 8. Calculate the coefficient 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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a 24. Calculate coefficient of concurrent deviation from the following data : Price 368 Price Imports Imports 384 26 22 21 384 9b er i t ng 24 385 es yhslimie 29 of boTs (aunim) ng 28 ooisv 27 361 20 S JU Nse 400 ntessia el ul22 bidi erb orber385 347 eir)
The following scatterplot and table represent the mean monthly temperature and rainfall of a coastal city over a period of 10 months. 325 300 275 250 225 200 rainfall (mm) 175 150 100 75 50 25 Temp 18 (°C) Rainfall 45 (mm) 15 X 10" 11" 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Temperature "C 20 19 Mean monthly temperature and rainfall 50 25 22 24 X 115 65 X 28 26 27 29 100 300 190 175 200 2.1 Determine the equation of the least squares regression line. 2.2 Identify the outlier. 2.3 Sketch the equation of the regression line on the DIAGRAM provided at the end of your paper. 2.4 Determine the value of the correlation coefficient and comment on the relationship between the mean temperature and the mean rainfall. 2.5 If the mean temperature recorded for a certain month is 14°C, calculate the mean rainfall for that month. How reliable is your answer? Explain and motivate your answer.
The data shown to the right for the dependent variable, y, and the independent variable, x, have been collected using simple random sampling. X. y 12 140 a. Construct a scatter plot for these data. Based on the scatter plot, how would you describe the relationship between the two variables? b. Compute the correlation coefficient. 15 170 11 130 13 160 15 180 10 120 14 140 10 150 a. Which graph below shows a scatter plot for these data? O A. OB. C. O D. Ay 200-4 Ay 200- 本y 15- Ay 15- 0+ 10 0+ 10 10+ 15 10 15 200 200 Click to select your answer(s).
Guess the correlation for the following scatter plots
The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and muscular endurance y. The accompanying data was read from a plot in the paper. X 390 740 760 y 3.90 r 3.90 5.00 5.30 4.10 3.60 6.20 OH₂: P = 0 Ha: P 0 1,465 1,470 1,495 2,190 t = P-value = 6.98 7.45 4.85 7.70 4.55 6.70 8.80 OH₂: P = 0 H₂: P = 0 Compute the value of the sample correlation coefficient, r. (Round your answer to four decimal places.) Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.) State the conclusion in the problem context. O Fail to reject Ho. A positive correlation exists between maximum lactate level and muscular endurance. Reject Ho. A positive correlation exists between maximum lactate level and muscular endurance. O Fail to reject Ho. A positive correlation does not exist between maximum lactate level and muscular endurance. O Reject Ho. A…
*8. Calculate the coefficient of correlation between X and Y from the following data and calculate probable error. Assume 69 and 112 as the mean value for X and Y respectively. X : 78 89 99 60 59 79 68 61 Y : 125 137 156 112 107 136 123 108
A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 119 129 160 97 154 122 117 137 125 118 D Diastolic 80 74 73 54 88 90 58 66 71 81 The coefficient of variation for the systolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.) The coefficient of variation for the diastolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.) Compare the variation. The coefficients of variation for each data set are Therefore, the systolic measurements vary V the diastolic measurements.
Calculate following?
Two sets of data shown below represent male and female students' lengths in (cm) in a college. Determine the Coefficient of Variation of male and female students, and then select the correct choices: Set (1) Male Students 152 164 180 175 165 Set (2) Female Students 155 168 164 158 This question includes .multiple correct choices 179 C.V. female = 0.051 C.V. male > C.V. female C.V. female > C.V. male C.V. male = 0.085
A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 116 130 157 96 158 120 118 137 126 119 Diastolic 81 77 75 53 88 86 58 65 70 84 The coefficient of variation for the systolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.)
Calculate the coefficient of variation between X and Y from the following data: 3 4. 6. Y 9. 10 12 11 13 14 16 重5

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8. Calculate the coefficient of correlation between X and Y from the following đata ana calculate probable error. Assume 69 and 112 as the mean value for X and Y respectively. X : 78 89 99 60 59 79 68 61 Y : 125 137 156 112 107 136 123 108