Use StatKey or other technology to find the regression line to predict Y from X using the following data. Click here to access StatKey. Round your answers to three decimal places. The regression equation is Y = i X Y 3 1.5 5 3 + i 2 1 7 5.5 6 3.5 X.
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- If your graphing calculator is capable of computing a least-squares sinusoidal regression model, use it to find a second model for the data. Graph this new equation along with your first model. How do they compare?Why do we have in general, two lines of regression? Obtain the regression of Y on X and X on Y from the following table and estimate the blood pressure when the age is 45. Also give the interpretation.Does the rate of violent crime acts vary across different regions of the United States? Answer this with the data in the file P10_34.xlsx as requested below. Estimate an appropriate regression model to explain the variation in violent crime rate across the four given regions of the United States. Use Region 4 as the baseline for the regression model. Round your answers to two decimal places, if necessary. If your answer is negative number, enter "minus" sign. Violent Crime Rate = + Region1 + Region2 + Region3 Interpret the estimated equation. Modify the regression model in part a to account for possible differences in the violent crime rate across the various subdivisions of the given regions. Estimate your revised regression equation. Use Subdivision 9 as the baseline for the regression model. Round your answers to two decimal places, if necessary. If your answer is negative number, enter "minus" sign. Violent Crime Rate = + Subdivision1 + Subdivision2 + Subdivision3 +…
- The average height of people in Faroe island is 180cm. Suppose you run a regression with no independent variables. What would be the estimated form of your regression?Find the regression equation, letting the first variable be the predictor (x) variable. Using the listed lemon/crash data, where lemon imports are in metric tons and the fatality rates are per 100,000 people, find the best predicted crash fatality rate for a year in which there are 475 metric tons of lemon imports. Is the prediction worthwhile? Find the equation of the regression line. a. Modifying Above y with caret equals (Round the y-intercept to three decimal places as needed. Round the slope to four decimal places as needed.) b. The best predicted crash fatality rate for a year in which there are 475 metric tons of lemon imports is fatalities per 100,000 population. (Round to one decimal place as needed.)If a student scored a 74 on his first test, make a prediction for his score on the second test. Assume the regression equation is appropriate for prediction. Round your answer to two decimal places, if necessary.
- Determine the regression equation for the data round the final values to the three significant digits if necessaryYou were tasked to study the impact of advertising costs to the customer acquisition. To implement this, the quarterly data for the past 2 years was provided. Create a regression line that fits the data and justify if the said data fits the curve.A production manager has compared the dexterity test scores of five assembly line employees with their hourly productivity. Find a relationship between these two variables. Compute for Sxx, Sxy, xbar, ybar, ahat and bhat to find the equation of the regression line. Show your solution
- A researcher has determined that the correlation between a persons age and their score on a happiness questionnaire is 0.58 The researcher developed the following regression model: Y=13+4x For every year of age a persons score on the questionnaire is expected to increase by how many points?The accompanying data are the number of wins and the earned run averages (mean number of earned runs allowed per nine innings pitched) for eight baseball pitchers in a recent season. 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=5 wins (b) x=10 wins (c) x=19 wins (d) x=15 wins LOADING... Click the icon to view the table of numbers of wins and earned run average. The equation of the regression line is y=nothingx+nothing. (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. 5 parts remaining Clear All Check Answer Wins and ERA Wins, x Earned run…The accompanying data are the number of wins and the earned run averages (mean number of earned runs allowed per nine innings pitched) for eight baseball pitchers in a recent season. 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=5 wins (b) x=10 wins (c) x=21 wins (d) x=15 wins Wins, x Earned run average, y 20 2.76 18 3.24 17 2.72 16 3.73 14 3.89 12 4.33 11 3.79 9 (a) The equation of the regression line is y= (b) When x = 5 (c) When x = 10 (d) When x = 21 (e) When x =15
