Given are five observations for tvwo variables, z and y.5148 23 205341521420a. Choose the correct scatter diagram for these data:A.В.y6060505040403030-202010-10102030405060 x102030405060 xC.D.606050504040-30-30 505040-40-3030-202010-10102030405060 x102030405060 x- Select your answer -b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?There appears to be a - Select your answer - v linear relationship between 3 and y.c. Try to approximate the relationship between a and y by drawing a straight line through the data.Select your answer -v to provide a linear approximation of the relationship between 2 and y.d. Develop the estimated regression equation by computing the values of by and bi using equations: (Enter negative values as negative figure)Σ-)-)bo = - b1Eŷ =æ (to 2 decimals)%3De. Use the estimated regression equation to predict the value of y when I = 17.(to 2 decimals)%3D

Given that Two varaibles X and Y having five observations We have to draw scatter diagram using…

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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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Complete parts (a) through (h) for the data below. X 2 3 4 6 7 y 3 6 10 15 18 (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. Choose the correct scatter diagram below. A. Ax 10- 20 y 20- Ay 10 10- (b) Find the equation of the line containing the points (2,3) and (7,18). y= ☐ X X+ (Type integers or simplified fractions.) X 20 -0 10 X
The temperature of a liquid during the first four minutes of an experiment has been recorded in the table below. Time (x) (minutes) 0 1 2 3 4 Temperature (y) (°C) 30 33 40 56 73 Determine if the relationship between temperature and time is linear by constructing a residual plot.
The ages (in years) of five men and their systolic pressures. (You can use technology) Age, x 16 25 39 45 49 Systolic blood pressure, y 109 122 143 132 199 a. calculate the correlation coefficient, r b. calculate the critical r c. Is there a significant linear relationship between x and y? d. find the equation of regression line e Interpret the slope and the y-intercept f. Predict the systolic blood pressure for a man who is 40 years old.
6 The table shows the number of gallons of gasoline in a car's gas tank after the car has been driven x miles. Gasoline Usage Gallons of Miles Driven, Gasoline in Tank, y 15 10 14.6 20 14.2 35 13.6 60 12.6 75 12 When these data are graphed on a coordinate grid, the points all lie on the same line. What are the slope and y-intercept of this line? F Slope 25' y-intercept = 375 G Slope = 25 Y-intercept = 15 H Slope = 25, y-intercept = 375 J Slope = -25, y-intercept = 15
The scatter plot shows the relationship between the number of minutes studying for a test (x) and the Score earned (y). Make a scatterplot for the data. Time Studying (x) 40 50 60 70 80 90 100 110 Score (y) 2 3 6 7 9. +H+ 10 6. -7- 4 3 1- 10, 10 20 30 40 50 60 70 80 90 100 110 12 7:04 PM Desktop 12/8/2026
Below is the actual data on the speed a person walks or runs in miles/hour and the calories the person burns per lap. Find the linear equation of best fit for this data. Compare the model to the data. Does the model seem to fit the data? Explain. What is the significance of the y-intercept? What is the slope and what does it mean? What is the x-intercept and what does it mean? What is the correlation coefficient and what does it mean? Speed (mph) Calories/lap 1 42 2 31 3 27 4 41 5 40 6 40 7 39 8 38 r answers to the nearest hundredth. The y-intercept means that if a person runs at ----------mph they will burn__________ per lap. The slope means that for each mph you increase your speed, you will burn an additional------------calories pay lap
An analyst wanted to analyze the relationship between the speed of a car (x) measured in mph and its gas mileage (y). As an experiment a car is operated at several different speeds and for each speed the gas mileage is measured. These data are shown below. Speed 25 35 45 50 60 65 70 Gas Mileage 40 39 37 33 30 27 25 What is the dependent variable? What is the independent variable?
Help me answer part C only. .9793 is wrong
Explain what is meant when two variables are positively linesrly related. What would scatter plott look like? Two variables x and y are postively linearly related if when the x value increases , the y value increases or decrease? The points on a scatter plot fall approximately in a-an ascending straight line b- a descending curve c- a descending straight line or d- an ascending curve from left to right?
The data in the following table show five students' reading test scores and final exam grades in a history class. Reading Test Score, x 8.5 9.4 10.0 11.4 12.0 History Final Exam Grade, y 66 68 78 87 92 (a) Use the points (8.5, 66) and (10.0, 78) to find a linear model that will predict a student's final exam grade, y, given his or her reading test score, x. y= (b) Use your linear model to estimate a student's final exam grade in the history class given that the student's reading test score was 10.5.

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