The dataset trafficflow gives the delay time in seconds for simulation runs in dresden, germany, comparing the current timed traffic light system on each run to a proposed flexible traffic light system in which lights communicate traffic flow information to neighboring lights. on average, public transportation was delayed seconds under the timed system and seconds under the flexible system. since this is a matched pairs experiment, we are interested in the difference in times between the two methods for each of the simulations. for the differences , we were given that seconds with seconds. we wish to estimate the average time savings for public transportation on this stretch of road if the city of dresden moves to the new system. the standard error is for one set of bootstrap samples. find a confidence interval for the average time savings. click here for the dataset associated with this question.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Answer pls man im trying to get out of summer school

After a dreary day of rain, the sun peeks through the clouds and a rainbow forms. you notice the rainbow is the shape of a parabola. the equation for this parabola is y = -x2 + 36. graph of a parabola opening down at the vertex 0 comma 36 crossing the x–axis at negative 6 comma 0 and 6 comma 0. in the distance, an airplane is taking off. as it ascends during take-off, it makes a slanted line that cuts through the rainbow at two points. create a table of at least four values for the function that includes two points of intersection between the airplane and the rainbow. analyze the two functions. answer the following reflection questions in complete sentences. what is the domain and range of the rainbow? explain what the domain and range represent. do all of the values make sense in this situation? why or why not? what are the x- and y-intercepts of the rainbow? explain what each intercept represents. is the linear function you created with your table positive or negative? explain. what are the solutions or solution to the system of equations created? explain what it or they represent. create your own piecewise function with at least two functions. explain, using complete sentences, the steps for graphing the function. graph the function by hand or using a graphing software of your choice (remember to submit the graph).