6. The following table shows the marks of 12 students inAccounts and' Q.T. . Determine the coefficient ofcorrelation.Marksin 65 40 35 75 65 80 35 20 85 65 55 33ассоuntancyMarks in Q.T30 55 68 28 76 25 80 85 2035 45 65

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Answered: 6. The following table shows the marks…

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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The table shows the results from a random survey asking participants their age and current systolic blood pressure. Age (years) 24 26 30 34 36 45 50 55 Systolic Blood Pressure 108 104 132 119 128 140 135 146 If a student correctly makes a scatter plot of the data from the survey, which statement is true? O There are no outliers in the data. O There is a negative association in the data. O There is a nonlinear association in the data. O There is at least one outlier in the data.
4.- For the following data set 10, 7, 6, k, 4, 7, 1, 10. Find the value of k so that (a) X = 6.25 (b) X = 7.5 Villalobos 2020 22 (c) M = 7 (d) MR = 10 CHAPTER 3. DATA DESCRIPTION
The coefficient of rank correlation of the marks obtained by 10 students in statistics and accountancy was found to be 0.8. It was later discovered that the difference in ranks in the two sub- jects obtained by one of the students was wrongly taken as 7 instead of 9. Find the correct coefficient of rank correlation.
Some people believe that different octane gasoline result in different miles per gallon in a vehicle. The following data is a sample of 11 people which were asked to drive their car only using 10 gallons of gas and record their mileage for each 87 Octane and 92 Octane. Miles with Miles with Person 87 92 Octane Octane 1 234 237 2 257 238 243 229 4 215 224 5 114 119 287 297 7 315 351 8. 229 241 9 192 186 10 204 209 11 547 562 Do the data support that different octanes produce different miles per gallon at the a = 0.02 level of significance? Note: A normal probability plot of difference in car mileage between Octane 87 and Octane 92 indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume Ha = H1 - H2, where 4i is the population mean mileage for Octane 87 and lz is the mean mileage for Octane 92. Ho: Ha Select an answer H1: Ha Select an answer b. What is the significance level? a =…
Give the statistical meaning of the relationship between the spending hours on using mobile andreading books per day.
7. In a contest for Mr. CAMPUS Personality, two judges gave their ratings to 8 candidates. Compute the coefficient of rank correlation (spearman). Interpret the result. Judge 1 Judge 2 R₁ R₁₂ d 88 84 1. 4 -3 a² 9 87 87. 4 2. 2 0 0 85 88. 3 1 2 4 80 854 4. 79, 82. 5. 78 80. 6.5 78 78 6.5 75 79 60 35687 1 1 0 0 0.5 0.25 -1.5 2.25 7 1 1 d-17.5
2. It is known that the student score data in a class is as follows: 9, 8, 6, 7, 7, 8, 5, 3, 6, 7 Describe the data in terms of central tendency!
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12. MS. Pettipiece wants to see if there is correlation between the students overall Data mark (in percent) in his class and the Grade 11 math mark (in percent). The following data was collected and graphed/ Scatter Plot Collection 1 Collection 1 100 Grade11 Data 90- 67 71 60 79 80- 80 93 :- 70- 69 72 74 66 60- 9. 86 79 50 7 86 89 40 78 67 90 91 55 60 65 70 75 80 85 90 95 Grade11 10 63 70 201 10- 11 72 63 12 76 0- 13 70 75 -10- 14 84 86 -20 15 55 43 55 60 65 70 75 80 85 90 95 Grade11 - Data = 0.866Grade11 + 11: r= 0.50 Discuss the correlation between the Data mark and the Grade 11 mark. Make sure to reference the coefficients of correlation and/or determination in your discussion. Residual Data
Find out the median of these data using the information provided
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6. The following table shows the marks of 12 students in Accounts and Q.T.. Determine the coefficient of correlation. Marks ассоuntancy Marks in Q.T in 65 40 35 75 65 80 35 20 85 65 55 33 30 55 68 28 76 25 80 85 20 35 45 65