Given the data as shown in the table belowm =X5644687694a) Assuming the correlation coefficient of X and Y is foundto be -0.897995, calculate the slope, m, and y-intercept, b, ofthe "Best-Fit" line Y = mx + b. Use 4 decimal places foreach of x, y, Sx, andSy values obtained from your calculator.Round your answer to 4 decimal places.1554-1952bY0.860.930.850.870.73b) Using the equation of the "Best-Fit" line to predict thevalue of Y when X = 60. Enter your answer in 4 decimalplaces.Ýc) Using the equation of the "Best-Fit" line to predict thevalue of X when Y= 0.89. Enter your answer in 4 decimalplaces.X=

xy560.86440.93680.85760.87940.73The correlation coefficient is given as Want to calculate slope and…

Answered: Given the data as shown in the table…

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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Customers at a large department store rated their satisfaction with their purchases, on a scale from 1 (least satisfied) to 10 (most satisfied). The cost of their purchases was also recorded. To three decimal places, determine the correlation coefficient between rating and purchase amount spent. Then describe the strength and direction of the relationship.
Answer this ASAP Determine the value of y for x = 4.7, given the following data:
Match each scatterplot shown below with one of the four specified correlations.
The following data was collected to explore how the average number of hours a student studies per night and the student's GPA affect their ACT score. The dependent variable is the ACT score, the first independent variable (x1�1) is the number of hours spent studying, and the second independent variable (x2�2) is the student's GPA. Effects on ACT Scores Study Hours GPA ACT Score 55 44 3030 44 33 3030 33 33 1919 33 33 1818 22 22 1818 Copy Data Step 1 of 2 : Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places
Compute the Correlation Coefficient for the data displayed in the table below: x 24 31 38 27 33 y 63 72 79 65 73 Round your final decimal answer to three decimal places (round to the nearest thousandth) Correlation Coefficient = [cc] = _______________
Instructions: Use the technology of your choice (calculator, Excel, GeoGebra, Google Sheets) to find the regression line, the correlation coefficient of the following data sets, and interpolate or extrapolate the requested data. (Round all numbers to the nearest hundredth, when necessary.) Data Set: {(−3,4),(−2,3),(−1,3),(0,7),(1,5),(2,6),(3,1)}{(−3,4),(−2,3),(−1,3),(0,7),(1,5),(2,6),(3,1)} 1. The regression line is: y=_______ −________x 2. Based on the regression line, we would expect the value of response variable to be _______ when the explanatory variable is 0. 3. For each increase of 1 in of the explanatory variable, we can expect a(n) _________ of _________ in the response variable. 4. If x=−3.5x=−3.5, the yˆ=y^= Answer. This is an example of _______. 5. The correlation coefficient is r=r= Answer. (Round to the nearest hundredth.)
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r? Row 1 19 23 31 49 51 70 79 Row 2 156 155 190 141 202 191 181 Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. r= 0.430 (Round to three decimal places as needed.) Calculate the correlation coefficient r, letting Row 2 represent the x-values and Row 1 the y-values. (Round to three decimal places as needed.)
Solve.
The two data sets are dependent. Find d¯¯¯d¯ to the nearest tenth. x 8.8 5.4 5.6 8.2 6.6 5.3 y 9.6 8.4 8.2 8.7 8.9 9.4 Round your answer to one decimal.
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r? Row 1 14 25 36 45 59 66 80 Row 2 162 166 160 106 139 143 156 Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. (Round to three decimal places as needed.)

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