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- calculate the correlation coefficient, r of the following datab. Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables.The following data show the number of class sessions missed during a semester of SOC221 and the final grade for a sample of 8 students selected at random. Number of Sessions Missed Final Grade (x) (y) 0 96 2 88 12 68 6 91 8…
- A computer while calculating correlation coefficient between two variables X and Y from 25pairs of observation obtained the following results: n=25, 2X=125, EX2 = 650, Y=100,Y2= 460, 2XY=508. But on subsequent verification it was found that he had copied downtwo pairs as (6,14) and (8,6) while the correct values were (8,12) and (6,8). Obtain the correctvalue of correlation coefficient?Which of the following scatter plots that true linear association?a. Calculate the point biserial correlation coefficient. b. Test the significance of association using t test.
- Required: Compute the coefficient correlation of the data below.What would the scatterplot look like if two variables X and Y had a Pearson Product Moment correlation of -0,547 A) curvilinear in that it moves upward on one side and downward on the other side B) s-shaped, moving downward, then upward, then downward again C) line that moves downward (linear) D) line that moves upwards (linear)Let Z~Normal(0,1). Define X1 = Z and X2 = Z2. Calculate the Spearman correlation coefficient for the pair (X1, X2).
- Use the following table to find the linear correlation coefficient between x and y x112432y311234Calculate the Pearson product-moment correlation coefficient, r, between these two sets of data: 1, 1, 2, 2, 2 4, 3, 3, 3, 4Match each scatterplot shown below with one of the four specified correlation coefficients.