The original scatterplot of y vs. x looks like this:57The slope of a simple linear regression line for these points is 0.a) If an extra point (illustrated in red) is added to the data (see the scatterplot below), then what is the approximate value of the slope of the line with this additional point?610000.000.05-0.200.84-0.4000.000.05-0.20y vs. xb) If an extra point (illustrated in red) is added to the data (see the scatterplot below), then what is the approximate value of the slope of the line with this additional point?y vs. x0.84-0.40y vs. x6 c) If an extra point (illustrated in red) is added to the data (see the scatterplot below), then what is the approximate value of the slope of the line with this additional point?y vs. xO 0.00O 0.05O -0.20O 0.84Ⓒ -0.40d) If an extra point (illustrated in red) is added to the data (see the scatterplot below), then what is the approximate value of the slope of the line with this additional point?O 0.00O 0.05O -0.20O 0.84O -0.40e) If an extra point (illustrated in red) is added to the data (see the scatterplot below), then what is the approximate value of the slope of the line with this additional point?y vs. x76y vs. x0.00O 0.05O -0.20O 0.84O -0.40

A scatterplot is a graphical representation that indicates the relationship between two variables x…

Answered: The original scatterplot of y vs. x…

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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Which of the following statements is NOT true? a.If the correlation coefficent, rr, is negative, then the slope of the regression line must always be negative. b.For variables x and y, the value of the correlation coefficent will not change c.if the units of x and y are changed, (i.e., if both x and y are changed from say inches to meters) d.If r≠0r≠0 , then a significant linear correlation will exist between the two variables e.The value of the correlation coefficient must be within the interval: −1≤r≤1
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (Each pair of variables has a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The caloric content and the sodium content (in milligrams) for 6 beef hot dogs are shown in the table below. (a) x= 160 calories (c) x = 140 calories (b) x = 100 calories (d) x= 200 calories 130 90 180 Calories, x Sodium, y 150 170 130 410 460 350 360 280 530 Find the regression equation. (Round to three decimal places as needed.)
what is the answer?
2. If the coefficient of correlation is a positive value, then the intercept must also be positive b. the coefficient of determination (R square) can be either negative or positive, depending on the value of the slope the slope of the line must be positive d. a. с. the regression equation could have either a positive or a negative slope
The accompanying data are the length (in centimeters) and girths (in centimeters) of 12 harbor seals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not. (a)x= 140 cm (b)x= 172 cm (c) x = 164 cm (d) x = 158 cm Click the icon to view the table of lengths and girths. The equation of the regression line is y=x+7 (Round to two decimal places as needed.). 4
please show work
The following is the simple regression results based on the data from Madrigal Corporation: Dependent variable – Machine maintenance costs Independent variable – Machine hours Computed values Intercept P 3,500 Coefficient on independent variable P 3.50 Coefficient of correlation 0.856 R2 0.733 What percentage of the variation in maintenance costs is explained by the independent variable? (use two decimal places, e.g. 82.20%, 55.31% or 0.82, 0.55, these will be counted as correct answers)
When there is no relationship between the independent variable and the dependent variable, the slope of the regression line is: Question 10 options: zero infinite negative positive
A researcher conducted a number of descriptive statistics for two variables X and Y. They were as follows: SP = 15; SSx = 3; My = 7; Mx = 3 What is b equal to (Please include the sign: e.g., -20)? What is a equal to (please include the sign: e.g., +4.0)? Using b and a construct a regression equation, and then using the regression equation, calculate the value of predicted Y when X = 2?
urgent.......
1. School administrators believe their freshman applications are influenced by two variables: tuition and the size of the applicant pool of eligible high school seniors in the state. The following data for an 8-year period show the tuition rates (per semester) and the sizes of the applicant pool for each year: Tuition in pesos Applicants Pool Applicants 27000 76,200 11,060 37500 78,050 10,900 41250 67,420 8,670 42000 70,390 9.050 46500 62,550 7,400 48750 59,230 7,100 52500 57,900 6,300 57900 60,080 6,100
The mortality rate of a sample of the population as a function of daily tobacco consumption can be seen below: Number of cigarettes "x": 3 5 6 15 20 Mortality rate "y" : 0.2 0.3 0.4 0.5 0.7 With these data, solve the following: a. Determine and interpret the correlation coefficient. b. Find the regression line of y on x. c. What will be the mortality rate for a consumer of 40 cigarettes per day?

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