The line of best fit through a set of data is y = - 42.824 – 3.033x According to this equation, what is the predicted value of the dependent variable when the independent variable has value 90?
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- ABC company has recently experienced a sharp decline in its stock price. Its current (time 0) stock price is $42.65, and this morning, it paid $5.00 per share. Given that the stock price four years ago was $82.88, complete the following time series of data by determining the missing values. t= -3, Pt =$83.43, Divt = $16.03, Rt = (1)t= -2, Pt =$85.20, Divt =(2), Rt = 22.8482%t= -1, Pt =(3), Divt =$17.50, Rt = 20.6572%t= 0, Pt =$42.65, Divt =$5.00, Rt =(4)Can you fill the table according to data? Thank you!Tire pressure (psi) and mileage (mpg) were recorded for a random sample of seven cars of thesame make and model. The extended data table (left) and fit model report (right) are based on aquadratic model. Calculate R2. Describe what this value means in the context of the problem.
- The graph above shows a line of best fit for data collected on the number of calories in relation to the grams of fat of different types of food. What is the equation of the line of best fit?If someone uses the equation (y= -20.5893(x) + 24.3929) to predict the percentage of weeds killed when 2.6 teaspoons of weed killer are used, which would the following would you expect? •the prediction will be too high •the prediction will be too low •a prediction cannot be made Explain your reasoning.You generate a scatter plot using excel. Excel plot the trend line and report the equation y=-49.78x+24.08 and the r^2=0.3969 what is the correlation coefficient for this data set?
- Patrick is studying the relationship between the number of employees per department and the monthly overtime per department and has collected the data shown in the table. The line of best fit for the data is yˆ=0.135x+36.6. Number of Employees 6080100120 Monthly Overtime (Hours) 45475053 According to the line of best fit, what would be the predicted monthly overtime for a department that had 122 employees? Provide your answer below: The predicted monthly overtime is hours.Data is collected on the relationship between time spent playing video games and time spent with family. The data is shown in the table and the line of best fit for the data is ŷ =−0.45x+81.83. Video Games (Minutes) 40557085 Time with Family (Minutes) 64565143 According to the line of best fit, the predicted number of minutes spent with family for someone who spent 79 minutes playing video games is 46.28. Is it reasonable to use this line of best fit to make the above prediction? Select the correct answer below: The estimate, a predicted time of 46.28 minutes, is unreliable but reasonable. The estimate, a predicted time of 46.28 minutes, is both unreliable and unreasonable. The estimate, a predicted time of 46.28 minutes, is both reliable and reasonable. The estimate, a predicted time of 46.28 minutes, is reliable but unreasonable.A trendline is given to depict enrollment at a local college where x is the year and y represents enrollment. Y=178.09x-353194 Use the rrendline ro estimate the enrollment for 2009. Round to the nearest whole number.