Consider the following computer output from a multiple regression analysis relating the cost of car insurance to the variables: number of car accidents, driver's credit score, and safety rating of the car. Intercept Car Accidents (In last 3 years) Credit Score Safety Rating Coefficients 1186 213.48 Coefficients - 130.46 294.11 Standard Error t Stat 9.575 Does the sign of the coefficient for the variable safety rating make sense? 123.87 21.89 14.26 356.37 P-value 0.0000 9.752 0.0000 -9.149 0.825 0.0000 0.4128

What is regression analysis? Describe the process of performing regression analysis on a graphing utility.

help please To study cockpit sound level (thevariable Noise) the following data was taken on 59plane flights: Phase (categorical variable thatdescribes the phase of the flight as climb, cruise anddescent) and Speed (airspeed in knots). To includethe categorical variable Phase in regression modelsthe indicator variables Climb and Descent wereadded to the data. A subset of the 59 observationsappear in the table to the right. To assess if Noise depends on flight phase and airspeed you use Excel to fit theregression model using Noise as the Y or dependent variable with Climb, Descent andSpeed as the independent or X variables. A portion of the Excel output appears below. a)  Use the regression model to predict Noise for a flight in the Cruise phasewith a speed of 310.b)  Sketch the above regression model in the Noise (Y) - Speed (X) plane.Your sketch should clearly indicate the number of lines. For each line you shouldhave a label to indicate the category and include values for the slope…

An outlier