Of the following graphs, which has the LARGEST standard deviation? All data was randomly generated with a sample size of n = 50, and all values of all the data are between 0 and 10. Be aware that the graphs are out of order on your answers!  

Multiple Choice (0.5 point each) A golfer hits a ball on a level fairway at an angle of 33° relative to the horizontal, and it lands on the green. Another golfer hits a ball with the same speed but at another angle, and it lands on the green by the other ball. What was the launch angle for the second golfer?

        A jet aircraft with a mass of 4,325 kg has an engine that exerts a force (thrust) equal to 60,500 N while experiencing a resistive force of 1,820 N during take off (a).         What is the jet’s acceleration in m/s2 and in g’s when it takes off?                                                  (3.5 points)   (b).         What is the jet’s speed after it accelerates for 5.0 s? (Assume it starts from rest.)                           (1.5 points) (c).         How far does the jet travel during the 6.5 s?                                                                                      (1.5 points)

(a).       State the law of conservations of energy.                                                                                         (1.5 points)   (b).         A construction worker’s tool falls off from a height of 15 m above ground. What is the speed of the toll when it hits the ground?                                                                                                                                   (1.5 points)   (c).         In an experiment performed in a space station, a force of 33 N causes an object to have an acceleration equal to 7.0 m/s2. What is the object’s mass?                                                                               (1.5 points) (d).         At what speed must a 150 g object be moving to have a linear momentum of 0.72 kg.m/s?       (1.5 points)  

What is the instructor’s last name?

Below is the residual plot (residuals vs. explanatory variable) for a specific simple linear regression model: Which of the following statement is correct?

            A 60.0 kg student runs up a 5.00 m high stairway in a time of 3.92 seconds. How much power did she develop?       

      An object is projected straight upward. Neglecting air resistance, it _____.   

Calculate the net present value of the new packaging machine.  Show your calculations.  

You are working with a financial advisor in putting together a savings plan for your retirement. You would like to know how much money you should have in retirement savings when you retire if you want to withdraw $40,000 per year every retirement year.  What type of problem is this?