Using your favorite statistics software package, you generate a scatter plot with a regression equation andcorrelation coefficient. The regression equation is reported asy = - 97.06x + 49.41and the r =- 0.77.What percentage of the variation in y can be explained by the variation in the values of x?% (Report exact answer, and do not enter the % sign)

We have given that Regression equation Y = - 97.06x + 49.41 And correlation coefficients r= -…

Answered: Using your favorite statistics software…

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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Please show how you came to your answer.
We would like to study the relationship between the number of family members in a household x and number of meals they eat together y. A regression equation based on a sample from the study is shown below. ŷ = 1.87 + 0.02x Estimate the number of meals shared by a family with 6 members. Select one: О а. 3 O b. 0 О с. 2 O d. 1
You just used a scatterplot to examine the relationship between CO2 emissions and city fuel consumption for 502 vehicles that use regular fuel. Find the correlation between these two variables. Round to 3 decimal places. Please make sure you use the correct variables in the data set.
The relationship between the cost of a concert ticket and a ranking of the performer's popularity was summarized by a regression equation with slope of 135 and y-intercept of -373. What is the equation of the regression line? cost =+ (O popularity Enter your answer in each of the answer boxes. tv 12 MacBook Air DD 888 esc F7 F8 F9 F5 F6 F1 F2 F3 F4
Can you please check my work
A regression was run to determine if there is a relationship between hours of TV watched per day, xx, and number of sit-ups, yy, a person can do in a minute.The results of the regression were: y=ax+b a=-1.105 b=27.483Use this to predict the number of sit-ups a person who watches 9.59.5 hours of TV can do in a minute. Round to the nearest whole number.
People often wonder which has the greater relationship with body weight, daily calories, or daily exercise. While there are certainly many factors that can affect body weight, these are often the two most investigated. A research group performed a correlation analysis. First, they calculated the correlation between body weight and calorie intake. The r-value was found to be .52. Next, the research group calculated the correlation between hours of exercise per week and body weight. The r value was - .57. Which statement is FALSE? The correlation between exercise and body weight is weaker than the relationship between calorie intake and body weight. The correlation between body weight and calorie intake is a strong relationship. The correlation between body weight and exercise is a strong relationship. The correlation between exercise and body weight is stronger than the relationship between calorie intake and body weight.
Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported asy=−94.15x+39.69y=-94.15x+39.69and the r=−0.12r=-0.12.What percentage of the variation in y can be explained by the variation in the values of x?r² = % (Report exact answer, and do not enter the % sign)
Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 94.13x + 21.26 y = and the T 0.61. What percentage of the variation in y can be explained by the variation in the values of x? (Report exact answer, and do not enter the % sign) Submit Question su ve Course ns search ins prt sc delete f12 no fa 144 f6 I01 backs & %24 8. 4.
Write a multiple regression equation that can be used to analyze the data for a two-factorialdesign with two levels for factor A and three levels for factor B. Define all variables.
State the type of correlation between the number of hours students spend studying and the number of hours they spend watching television. Explain your answer.
In running a correlational analysis, a researcher may have three possible results. Make your research of what does positive correlation, negative correlation and no relationship means.

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