### Data Table| x | y ||------|-------|| 81.4 | 31 || 81.4 | 32.3 || 70.7 | 1.4 || 59 | -11.7 || 87.1 | 38.5 || 77.4 | 13.8 || 70.6 | 7.6 || 79.8 | 21.3 || 91.8 | 53.3 || 69.6 | 16.1 || 54.5 | -12.4 || 70.3 | 7.5 || 68 | 16 || 72.1 | 12.3 || 85.6 | 41.9 || 75.7 | 21.2 || 70.6 | 10.3 || 72.6 | 15.6 || 71.1 | 13.2 || 63.3 | 8.7 |This data can be downloaded as a *.csv file with this link: [Download CSV](#)### Instructions**Find the correlation coefficient** and report it accurate to three decimal places.\( r = \) [Input Box]**What proportion of the variation in y** can be explained by the variation in the values of x? Report the answer as a percentage accurate to one decimal place.\( R^2 = \) [Input Box] %

The question is about correlation Given : To find : 1 ) Value of r 2 ) Value of R2

Answered: X 81.4 31 81.4 32.3 70.7 1.4 59 -11.7…

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 data contains the trunk circumference and height (in inches) of 31 black cherry trees. Suppose you are interested in predicting the height of a tree from its trunk circumference. Circumference Height 8.3 70 8.6 65 8.8 63 10.5 72 10.7 81 10.8 83 11 66 11 75 11.1 80 11.2 75 11.3 79 11.4 76 11.4 76 11.7 69 12 75 12.9 74 12.9 85 13.3 86 13.7 71 13.8 64 14 78 14.2 80 14.5 74 16 72 16.3 77 17.3 81 17.5 82 17.9 80 18 80 18 80 20.6 87 Is the regression slope significantly different from 0 at the 5% significance level? Report the test statistic, critical value, and p-value. You do not have to perform all steps of the hypothesis test.
Which of the given data sets is less variable? а. 1,1,2,2,3,3,4,41,1,2,2,3,3,4,4 b. 1,1,1,1,8,8,8,81,1,1,1,8,8,8,8 C. 1,-1,2,-2,3,-3,4,-41,-1,2,-2,3,-3,4,-4 d. 1,1.5,2,2.5,3,3.5,4,4.51,1.5,2,2.5,3,3.5,4,4.5 е. 1,1,2,4,5,7,8,81,1,2,4,5,7,8,8 f. None g. 1,2,3,4,5,6,7,81,2,3,4,5,6,7,8 h. 1,2,2,3,3,3,4,4,4,41,2,2,3,3,3,4,4,4,4 i. 1,1,1,4,5,8,8,81,1,1,4,5,8,8,8 j. -1,-0.75,-0.5,-0.25,0,0,0,0.25,0.5,0.75,1
Sunspot Numbers Listed below in order by row are annual sunspot numbers beginning with 1980. Is the best model a good model? Carefully examine the scatterplot and identify the pattern of the points. Which of the models fits that pattern?
y 67.7 21.7 184.2 73.9 64.2 19.6 73.1 31.9 86.8 28 83.7 24.8 58.5 8.8 84.9 38.4 78.5 10.7 67.8 39.5 52.5 23.7 49 22 74.4 10 82 29.4 77.4 19.3 82.8 28 72.4 11.4 79 23.7 85.6 48.7 65.2 17.4 79.2 16.2 107.8 49 69.4 19.7 79.1 31.7 82.1 14.6 75.9 29.4 Make a scatter plot of this data. Which point appears to be an outlier? |(184.2,73.9) (Enter as an ordered pair.)
QUESTION 23 If the mean is 25 for the data: 20, 30, 15, 24, y, 8 find the median 22 53 20 24 QUESTION 24
Calculate the coefficient of skewness for the data referring to 50 students. 173.5 171.4 178.2 165.7 180.0 174.6 176.0 168.5 180.1 165.9169.0 175.4 176.5 164.0 167.5 158.4 168.0 172.8 172.5 173.2170.5 180.5 171.8 184.3 178.5 172.0 174.5 173.0 176.3 186.4167.5 165.7 165.0 178.0 177.5 181.0 179.5 174.6 173.2 172.9170.5 181.3 160.6 168.5 170.0 171.0 176.5 178.9 180.0 169.0
prove that If we multiply the data values by a constant (say, c), value of geometric mean will be affected. how this will affect the geometric mean? Use the equation in image to prove it, and give an example.
Review this chart. Identify what type of figure/chart is presented and briefly explain what each chart is reporting.
Hours Spent in Child Care 5.5 11.4 2.1 11.0 7.2 5.1 9.1 10.2 2.9 8.7 10.0 9.0 9.8 9.4 3.1 8.5 9.6 10.6 7.6 8.9 10.7 6.0 0.6 3.7 9.8 3.3 3.5 5.0 3.3 10.3 7.3 6.9 6.1 4.3 0.8 6.9 8.1 1.3 1.6 9.8 Sample Size 40 Hypothesized Mean 6
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Mouse weights. Find the mean and median for the data in the following table. Interval 41.5−43.5 43.5−45.5 45.5−47.5 47.5−49.5 49.5−51.5 51.5−53.5 53.5−55.5 55.5−57.5 57.5−59.5 Frequency 4 5 14 18 21 15 16 5 2 mean = ______. (Round to two decimal places if needed.)

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