From the following data calculate Spearman's rank correlation coefficient where X and Y are the marks in Mathematics and Statistics of a student: 48 33 40 9. 16 16 65 24 16 57 : 13 13 24 15 4 20 13 19
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- For the following exercises, use Table 4 which shows the percent of unemployed persons 25 years or older who are college graduates in a particular city, by year. Based on the set of data given in Table 5, calculate the regression line using a calculator or other technology tool, and determine the correlation coefficient. Round to three decimal places of accuracyHere is a bivariate data set.x y71 461 555 6148 -876 3126 7074 -62 Find the correlation coefficient and report it accurate to four decimal places.r =From the data of the following table: Calculate Spearman's rank correlation coefficient between x and y and determine its type. s
- With the following data in 6 cities, calculate the coefficient of correlation by Pearson’s method between the density of population and death rate:Cities ABCDEF Area in sq. kilometre 150 Population in ‘000’ 30 No. of Deaths 300180 100 60 120 80 9040427224 1440 560 840 1224 312Compute r, the correlation coefficient, using the following data. R=_____ (round to three decimal places)Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.05. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.0 7.6 9.6 9.2 8.8 8.3 Weight 111 159 242 193 205 187
- Find the coefficient of determination, given that the value of the linear correlation coefficient, r, is 0.681. (Round to four decimal places.)Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.1 7.7 9.7 9.4 8.7 8.3 Weight 111 201 242 204 197 192 Construct a scatterplot. Choose the correct graph below. The linear correlation coefficient is r=enter your response here. (Round to three decimal places as needed.) The critical values are r=enter your response here. (Round to three decimal places as needed. Use a comma to separate answers as needed.)Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.1 7.6 9.7 9.4 8.8 8.2 Weight 111 198 246 204 202 185 Construct a scatterplot. Choose the correct graph below. (inserted as picture) The linear correlation coefficient is r=__________ (Round to three decimal places as needed.) The critical values are r= (_______,________) (Round to three decimal places as needed. Use a comma to separate answers as needed.) Because the absolute value of the linear correlation coefficient is (greater,less than, equal to) than the positive…
